2024/04/01/

New B4 students joined our group

Inoue, Urashima and Guan joined our group

Welcome!

2024/03/15/

M4 Yazawa and Sakai participated in the JIM and ISIJ Spring Meeting, and gave the following presentations

T. Yazawa, Y. Shibuta, M. Ohno, "Molecular dynamics simulation of excess vacancy formation during rapid solidification of pure metals"(JIM)

Y. Sakai, M. Ohno, "Development of machine learning for prediction of solid-liquid interfacial properties from solidification microstructure"（JIM poster）

2024/02/20/

We had a farewell party for M2 students

We wish all the best in your new life.

2024/02/16/

Master's thesis presentation was held

Oe, Murata and Tsuboi presented their master's theses

They delivered nice presentations

2024/02/07/

Graduation thesis presentations were held on Feb. 6-7

Sakai and Yazawa presented their graduation theses

Well done!

2024/01/19/

Sakaki(B4), Yazawa(B4), Okada(M1), Wang(M1) and Kachurin(M1) attended Hokkaido Chapter Meeting of ISIJ and JIM

Y. Sakai, M. Ohno, "Machine learning for prediction of solid-liquid interfacial energy and its anisotropy in Al-Cu alloy"

T. Yazawa, M. Ohno,"Excess vacancy formation during rapid solidification in pure metals by Molecular dynamics simulation"

K. Okada, R. Yamada and M. Ohno, "Machine learning for prediction of microsegregation from snapshot of microstructure

Y. Wang, M. Ohno "Multi-Phase Field Simulation of Solidification and Grain Growth during Selective Laser Melting of Inconel"

K. Kachurin, M. Ohno "Multi-phase-field modeling of microstructure evolution during welding of titanium-based alloy"

2023/12/19/

We enjoyed a year-end party, thank you for all your nice work throughout the year!

2023/11/17/

Konishi(M1) and Okada(M1) attended The 1st International conference on Creation of Materials by Superthermal Field 2023(CMSTF2023) and gave the following poster presentation.

K. Konishi, M. Ohno, "Solute trapping during rapid solidification in Al-Cu alloys by molecular dynamics simulation"

K. Okada, R. Yamada, M. Ohno, "Development of a method for estimating liquid diffusivity using data assimilation"

Okada won Silver Poster Award. Congratulations!

2023/11/6/

We took a group photo

2023/09/22/

M2 Murata, Tsuboi, Oe, M1 Konishi, Shiga, Okada, and B4 Sakai participated in the JIM and ISIJ Fall Meeting, and gave the following presentations

I. Shiga, M. Ohno, Y. Hattori, K. Tsutsumi, Y. Kishimoto, "Quantitative phase-field simulation of melting process of cold scrap iron"（ISIJ）

K. Okada, R. Yamada, M. Ohno, "Estimation of liquid diffusivity by data assimilation from microsegregation"（JIM poster）

K. Konishi, M. Ohno, Y. Shibuta, "Molecular dynamics simulation of solute trapping phenomenon in Al-Cu alloys" (JIM)

K. Murata, R. Yamada, M. Ohno, "Phase-field analysis of coarsening of TiC particles in gamma phase under carbon concentration gradient" (JIM)

M. Tsuboi, R. Yamada, M. Ohno, "Analysis of inverse problem in diffusion process using physics informed neural network" (JIM)

K. Oe, Y. Shibuta, T. Takaki, M. Ohno, "Molecular dynamics simulation of nucleation of Ni-Al solid solution during solidification" (JIM)

2023/07/14/

M2 Murata won the encouragement award at the Hokkaido chapter meeting of JIM and ISIJ

M2 Murata made the following poster presentation at the Hokkaido chapter meeting of JIM and ISIJ held on July 14, and received the encouragement award.

K. Murata, R. Yamada, M. Ohno, "Numerical anlyaisi of growth behavior of TiC in austenite under temperature gradient"

Congratulations!

2023/07/05/

Prof. Tetsuo Mohri visited our laboratory from 7/5 to 7/7. He gave us a lecture on diffusion in alloys and the following material seminar

Tetsuo Mohri, "Size of atoms in alloys"

We had a drinking party with lab students and professors. Thank you very much.

2023/04/01/

New B4 students joined our group

Sakai, Yazawa joined our group

Welcome!

2023/02/22/

We had a farewell party for M2 students

We wish all the best in your new life.

2023/02/10/

Graduation thesis presentations were held on Feb. 9-10

Okada, Konishi, and Shiga presented their graduation theses

Well done!

2023/02/07/

Master's thesis presentation was held

Awa, Fukuzawa, and Moriguchi presented their master's theses

They delivered nice presentations

2023/01/20/

Tsuboi recieved award!

M.Tsuboi (M1) received awards at Hokkaido Chapter Meeting of ISIJ and JIM

Congratulations！

2023/01/20/

M.Tsuboi (M1) attended Hokkaido Chapter Meeting of ISIJ and JIM

M. Tsuboi, R. Yamada, M. Ohno, "Inverse analysis of one-dimensional diffusion process based on deep learning"

2022/12/21/

There was a year-end party, thank you for all your nice work throughout the year!

2022/11/29/

The following papers are added in "Publications"

・T. Oikawa, Y. Natsume, M. Ohno, "Application of Heat Transfer Coefficient Estimation Using Data Assimilation and a 1-D Solidification Model to 3-D Solidification Simulation", ISIJ International, 62 (2022), 1666.

・E. Miyoshi, M. Ohno, Y. Shibuta, A. Yamanaka, T. Takaki, "Validating a mean-field theory via large-scale phase-field simulations for abnormal grain growth induced by nonuniform grain boundary properties", Journal of Materials Science, 57 (2022), 16690.

・A. Yamamura, S. Sakane, M. Ohno, H. Yasuda, T. Takaki, "Data assimilation with phase-field lattice Boltzmann method for dendrite growth with liquid flow and solid motion", Computational Materials Science, 215 (2022), 111776.

2022/11/28/

We took a group photo

2022/11/21/

Two international students joined our group

Konstantin KACHURIN

Yuheng WANG

Wellcome!

"members" is updated

2022/09/29/

Ohe(M1) received excellent poster awards at 2022 Annual Fall Meeting of JIM

Congratulations!

2022/09/23/

We attended 2022 Annual Fall Meeting of JIM

C. Awa, M. Ohno, "Simulation Analysis of Microsegregation due to Massive-like Transformation in a Peritectic Solidified Steel"

K. Morishita, R. Yamada, M. Ohno, "Parameter estimation for fluid flow based on data assimilation"

S. Fukuzawa, R. Yamada, M. Ohno, "Development of machine learning model for inverse analysis of anisotropy strength of interfacial energy from microsegregation"

K. Ohe, Y. Shibuta, T. Takaki, M. Ohno, "Analysis of nucleation of Ni-rich solid solution in Ni-Al alloys by molecular dynamics simulation"

2022/07/15/

We attended summer sesstion (Hokkaido Chapter Meeting of ISIJ and JIM)

S. Fukuzawa, R. Yamada, M. Ohno, "Inverse analysis of anistropy strength of solid-liqiud interfacial energy from microsegregation behaivor based on machine learning"

2022/04/01/

Ph.D defense presentation of Kim (D3) was conducted

Kim delivered oral presentation about Ph.D thesis entitled "Growth Morphology of Solidification Microstructure and Anisotropy of Solid-liquid Interfacial Energy"

He passed the dissertation defense. Congratulations!

2022/04/01/

New B4 students joined our group

Okada, Konishi and Shiga joined our group

2022/03/28/

The following papers are added in "Publications"

・G. Kim, R. Yamada, T. Takaki, Y. Shibuta, M. Ohno, "Inverse analysis of anisotropy of solid-liquid interfacial free energy based on machine learning", Computational Materials Science, 207 (2022), 111294.

・R. Yamada, M. Kudo, G. Kim, T. Takaki, Y. Shibuta, M. Ohno, "Time invariance of three-dimensional morphology of equiaxed dendrite: A phase-field study", Computational Materials Science, 204 (2022), 111173.

・T. Takaki, S. Sakane, M. Ohno, Y. Shibuta, T. Aoki, "Phase-field study on an array of tilted columnar dendrites during the directional solidification of a binary alloy", Computational Materials Science, 203 (2022), 111143.

・Y. Nagatsuma, M. Ohno, T. Takaki, Y. Shibuta, "Bayesian Data Assimilation of Temperature Dependence of Solid-Liquid Interfacial Properties of Nickel", Nanomaterials, 11 (2021), 2308.

・E. Miyoshi, M. Ohno, Y. Shibuta, A. Yamanaka, T. Takaki, "Novel estimation method for anisotropic grain boundary properties based on Bayesian data assimilation and phase-field simulation", Materials & Design, 210 (2021), 110089.

2022/03/25/

Commencement ceremony was conducted and we had a farewell party

We hope everything goes well with Kudo, Haraguchi, and Hiramatsu

2022/02/10/

We had graduation thesis presentation online

Ohe, Tsuboi and Murata delivered presentation.

They did nice presentation.

2022/02/07/

We had master's thesis presentation online

Kudo, Haraguchi and Hiramatsu delivered presentation.

They did nice presentation.

2022/01/27/

K. Haraguchi (M2) and K. Moriguchi (M1) received awards at Hokkaido Chapter Meeting of ISIJ and JIM

Congratulations！

2022/01/21/

K. Haraguchi (M2), C. Awa (M1) and K. Moriguchi (M1) attended Hokkaido Chapter Meeting of ISIJ and JIM

K. Haraguchi，M. Ohno, "Contolling thermal fluctuation noise in phase-field simulation for nucelation"

C. Awa, M. Ohno, "Numerical analysis of microsegregation assoicated with massive-like transformation in peritectic solidified carbon steels"

K. Moriguchi, R. Yamada, M. Ohno, "Estimation of fluid flow during casting based on data assimilation"

2021/12/17/

We had an year-end party of 2021

On December 17, we held an year-end party of 2021! We had a great time!

2021/09/17/

D. Hiramatsu (M2), M. Kudo (M2) and Prof. Yamada attended 2021 Annual Fall Meeting of JIM

-D. Hiramatsu, M. Ohno, Y. Shibuta, T. Takaki, “Molecular dynamics simulation of nucleation behavior in isothermal solidification of fcc metal”

-M. Kudo, R. Yamada, Y. Shibuta, T. Takaki and M. Ohno, “Simulation analysis for morphological changes of three-dimensional equiaxed dendrites”

-R. Yamada, M. Ohno, “Alloy solidification simulation at diffusive time s cale using continuous cluster activation method”

2021/04/26/

The following paper is added in "Publications"

・R. Yamada, H. Inubushi and M. Ohno, "Ostwald ripening under temperature gradient: A phase-field study", Journal of Applided Physics, 130 (2021), 015109.

2021/06/01/

Ms. Minami joined our group

Welcome!

2021/04/26/

The following papers are added in "Publications"

・J. Lee, M. Ohno, Y. Shibuta and T. Takaki, "Uniquely selected primary dendrite arm spacing during competitive growth of columnar grains in Al-Cu alloy", Journal of Crystal Growth, 558 (2021), 126014.

・G. Saito, T. Zhang, N. Sakaguchi, M. Ohno, K. Matsuura, M. Takeuchi, T. Sano, K. Minoguchi, T. Yamaoka, "In-situ observation of abnormal grain growth in a low-alloyed carbon steel using SEM-EBSD", Materialia, 15 (2021), 100985.

・G. Saito, N. Sakaguchi, M. Ohno, K. Matsuura, M. Takeuchi, T. Sano, K. Minoguchi, T. Yamaoka, "Effects of cooling rate after hot forging on precipitation of fine particles during subsequent normalizing and austenite grain growth during carburization of Al- and Nb-microalloyed case-hardening steel", ISIJ International, 61 (2021), in press. (https://doi.org/10.2355/isijinternational.ISIJINT-2020-743)

2021/04/01/

New B4 students joined our group

Ohe, Tsuboi and Murata joined our group

2021/03/25/

We had a farewell party

We enjoyed online party.

We hope everything goes well with Oka, Inubushi, Tsuji and Lee

Also, many thanks go to secretary, Ms. Kubo

2021/03/25/

Commencement ceremony is held

Congratulations!

2021/02/10/

Ph.D defense presentation of Oka (D3) was conducted

Oka delivered oral presentation about Ph.D thesis entitled "Parameter estimation for simulations of solidification in metals based on data assimilation"

Se passed the dissertation defense. Congratulations!

2021/02/08/

We had graduation thesis presentation online

Awa, Fukuzawa and Moriguchi delivered presentation.

They did nice presentation.

2021/02/04/

We had master's thesis presentation online

Inubushi, Tsuji and Lee delivered presentation.

They did nice presentation.

2021/01/27/

Prof. Yamada and D. Hiramatsu (M1) received awards at Hokkaido Chapter Meeting of ISIJ and JIM

Our assistant professor Ryo Yamada was awarded ‘Sato Noriyasu’ prize from Hokkaido chapter of the Japan Institute of Metals and Materials

D. Hiramatsu recieved Encouragement Award from JIM.

Congratulations！

2021/01/15/

Prof. Yamada and D. Hiramatsu (M1) attended Hokkaido Chapter Meeting of ISIJ and JIM

-R. Yamada and T. Mohri,“Phase equilibiria of two phase region (B2+L21) analyzed by first-principles cluster variation methods”

-D. Hiramatsu and M. Ohno, “Molecular dynamics simulations of nucleation process during solidification of pure Al”

2020/12/16/

The following papers are added in "Publications"

- R. Yamada, M. Ohno and T. Mohri, "Configurational kinetics studied by Path Probability Method Progress in Materials Science", Progress in Materials Science, in press

- E. Miyoshi, T. Takaki, S. Sakane, M. Ohno, Y. Shibuta, T. Aoki, "Large-scale phase-field study of anistropic grain growth: Effects of misorientation-dependent grain boundary energy and mobility", Computationail Materials Science, 186 (2021), 109992.

- M. Ohno, "Quantitative phase-field modeling and simulations of solidification microstructures", ISIJ Interntional, 60 (2020), 2745-2754.

- T. Koyama, M. Ohno, A. Yamanaka, T. Kasuya and S. Tsukamoto, "Development of Microstructure Simulation System in SIP-Materials Integration projects", Materials Transactions, 61 (2020), 2047-2051.

- C. Guo, T. Takaki, S. Sakane, M. Ohno, Y. Shibuta, T. Mohri, "Overgrowth behavior at converging grain boundaries during competitive grain growth: A two-dimensional phase-field study",International Journal of Heat and Mass Transfer, 160 (2020), 120196.

- G. Saito, N. Sakaguchi, M. Ohno, K. Matsuuraa, M. Takeuchi, T. Sano, K. Minoguchib, T. Yamaoka, "Effects of concentrations of micro-alloying elements and hot-forging temperature on austenite grain structure formed during carburization of case-hardening steel",ISIJ International, 60 (2020), 2549-2557.

- T. Tokunaga, K. Sotomoto, M. Ohno, K. Matsuura, "Development of high corrosion and wear resistant Al-Si alloy coating on AZ80 Mg alloy by hot extrusion",Journal of Materials Engineering and Performance, 29 (2020), 6355-6362.

2020/09/18/

K. Haraguchi (M1), M. Kudo (M1) and H. Inubushi(M2) attended 2020 Annual Fall Meeting of JIM

-K. Haraguchi, M. Ohno, “Controlling of Noise in Phase-field Simulation for Nucleation”

-M. Kudo, Y. Shibuta, T. Takaki and M. Ohno, “Simulation for scaling of three-dimensional morphology of equiaxed dendrites”

-H. Inubushi, M. Ohno, “Coarsening behavior of second particles in non-uniform temperature field”

2020/04/01/

Assistant Professor Ryo Yamada joined our group

We wellcome Dr. Ryo Yamada as assistant professor of this laboratory

2020/02/10/

We had master's thesis presentations

Master's thesis presentations were held on Feb. 10

T. Kinoshita, K. Takano, T. Nakayama gave nice presentations

2020/02/07/

We had graduation thesis presentations and K. Haraguchi(B4) recieved "ARAGANE award"

Graduation thesis presentations were held on Feb. 6 and 7.

M. Kudo, K. Haraguchi and T. Hiramatsu did nice works

K. Haraguchi recieved "ARAGANE Award", the best presentation award

Congratulations !

2020/01/17/

R. Tsuji(M1) and J. Lee (M1) received awards at Hokkaido Chapter Meeting of ISIJ and JIM.

R. Tsuji(M1) and J. Lee (M1) attended Hokkaido Chapter Meeting of The Iron and Steel Institute of Japan (ISIJ) and Japan Institute of Metals (JIM).

Tsuji recieved Encouragement Award from ISIJ and Lee recieved Encouragement Award from JIM.

Congratulations！

2019/12/23/

We had an year-end party of 2019

On December 23, we held an year-end party of 2019! In this year, we made a great success on research and attended a lot of conferences. Of course, we look forward to make greater jobs in next year too. Take care and see you in 2020!

2019/12/18/

This new website is launched

2019/10/21/

K. Takano (M2) received the encouragement award at The 178th ISIJ Meeting and H. Inubushi (M1) received the best poster award at Year 2019 Annual Fall Meeting of JIM

We attended The 178th ISIJ Meeting and Year 2019 Annual Fall Meeting of JIM held at Okayama University.

K. Takano (M2) received the encouragement award at ISIJ Meeting!

H. Inubushi (M1) received the best poster award at Year 2019 Annual Fall Meeting of JIM!

Great job and congratulation again!

2019/09/24/

We had a farewell party for Prof. Tokunaga

Prof. Tokunaga will transfer from our laboratory, so we held a farewell party.

We greatly appreciate her contribution to our laboratory.

2019/08/19/

We enjoyed a Genghis Khan (Mongolian mutton barbecue) party!

We had a Genghis Khan party for the first time in 2019!

Although it was a hot day, we shared labors and made a great night.

Of course we did not forget about cleaning up!

2019/07/29/

We attended the 4th International Symposium on Phase-Field Modelling in Materials Science

From 22nd to 25th of July, we attended the 4th International Symposium on Phase-Field Modelling in Materials Science at Bochum, Germany.

It was an precious experience for us to make an oral presentation at such a huge international conference.

2019/07/05/

Assistant professor Genki Saito was awarded ‘Noriyasu SATO’ prize from Hokkaido chapter of JIM

Our assistant professor Genki Saito was awareded ‘Sato Noriyasu’ prize from Hokkaido chapter of the Japan Institute of Metals and Materials

We are really proud of your huge success!

2019/06/28/

We attended international conference ICASP5-CSSCR5

From 17th to 21st of June, we attended ICASP5-CSSCR5 at Salzburg Austria.

We hung out with people from other universities and it was a truly nice conference for us.

2019/04/23/

G. Kim (D1) and J. Lee (M1) were awarded the best poster award at Year 2019 Annual Spring Meeting of JIM

G. Kim (D1) and J. Lee (M1) attended Year 2019 Snnual Spring Meeting of JIM and received the best poster award. Congratulations!

2019/04/20/

We had a welcome party for our new B4!

We held a welcome party for our new members who just came to our laboratory.

Welcome again and hope you guys have a good luck on your works!

2019/04/01/

We gave a present to our new Professor!

We gave a present to professor Ohno as a commemoration for being a Professor!

We would like to congratulate you on your promotion to Professor