Achievements

Hydrogen embrittlement behaviors of ultrafine-grained 22Mn–0.6C austenitic twinning induced plasticity steel

Yu Bai;  Yanzhong Tian;  Si Gao;  Akinobu Shibata;  Nobuhiro Tsuji
Sep 2017 in Journal of Materials Research
DOI: 10.1557/JMR.2017.351

Deformation Induced Martensitic Transformation and Its Initial Microstructure Dependence in a High Alloyed Duplex Stainless Steel

Lin Xie;  Tian-Lin Huang;  Yu-Hui Wang;  Gui-Lin Wu;  Nobuhiro Tsuji​​​​​​​
Aug 2017 in Steel Research International
DOI: 10.1002/SRIN.201700169

Investigation of the grain size effect on mechanical properties of Ti-6Al-4V alloy with equiaxed and bimodal microstructures

Yan Chong; Tilak Bhattacharjee; Akinobu Shibata; Nobuhiro Tsuji
Jul 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/219/1/012013

Microstructures and mechanical property of a Fe-Ni-Al-C alloy containing B2 intermetallic compounds

Si Gao; Yu Bai; Akinobu Shibata; Nobuhiro Tsuji
Jul 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/219/1/012020

Enhanced mechanical properties in fully recrystallized ultrafine grained ZKX600 Mg alloy

Ruixiao Zheng;  Tilak Bhattacharjee;  Si Gao;  Wu Gong;  Akinobu Shibata;  Taisuke Sasaki;  Kazuhiro Hono;  Nobuhiro Tsuji​​​​​​​
Jul 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/219/1/012055

Reason for high strength and good ductility in dual phase steels composed of soft ferrite and hard martensite

Daisuke Terada;  Gosuke Ikeda;  Myeong-heom Park;  Akinobu Shibata;  Nobuhiro Tsuji​​​​​​​
Jul 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/219/1/012008

Structural refinement and property optimization in an Fe-23Cr-8.5Ni duplex stainless steel

L. Xie;  T.L. Huang;  Y.H. Wang;  L. Zhang;  G.L. Wu;  N. Tsuji​​​​​​​
Jul 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/219/1/012045

Friction stress and Hall-Petch relationship in CoCrNi equi-atomic medium entropy alloy processed by severe plastic deformation and subsequent annealing

Shuhei Yoshida; Tilak Bhattacharjee; Yu Bai; Nobuhiro Tsuji
Jun 2017 in Scripta Materialia
DOI: 10.1016/J.SCRIPTAMAT.2017.02.042

Post-uniform elongation and tensile fracture mechanisms of Fe-18Mn-0.6C-xAl twinning-induced plasticity steels

Ha-Young Yu;  Sang-Min Lee;  Jae-Hoon Nam;  Damien Fabrègue;  Myeong-heom Park;  Nobuhiro Tsuji;  Young-Kook Lee​​​​​​​
Jun 2017 in Acta Materialia
DOI: 10.1016/J.ACTAMAT.2017.04.011

Characterization of microstructure and mechanical property of pure titanium with different Fe addition processed by severe plastic deformation and subsequent annealing

Guanyu Deng;  Tilak Bhattacharjee;  Yan Chong;  Ruixiao Zheng;  Yu Bai;  Akinobu Shibata;  Nobuhiro Tsuji​​​​​​​
May 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/194/1/012020

Change of deformation mechanisms in ultrafine grained Mg-Zn-Zr-Ca alloy

Ruixiao Zheng;  Tilak Bhattacharjee;  Akinobu Shibata;  Taisuke Sasaki;  Kazuhiro Hono;  Nobuhiro Tsuji​​​​​​​
May 2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/194/1/012016

Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures

Ruixiao Zheng;  Tilak Bhattacharjee;  Akinobu Shibata;  Taisuke Sasaki;  Kazuhiro Hono;  Mohit Joshi;  Nobuhiro Tsuji​​​​​​​
Apr 2017 in Scripta Materialia
DOI: 10.1016/J.SCRIPTAMAT.2016.12.024

Cooperative strain accommodation over grains in martensitic transformation from Fe-Ni nanocrystalline austenite

Akinobu Shibata;  Fumitaka Ichikawa;  Hiroki Adachi;  Tohru Yamasaki;  Nobuhiro Tsuji​​​​​​​
Feb 2017 in Philosophical Magazine Letters
DOI: 10.1080/09500839.2017.1292057

Effect of strain rate on hydrogen embrittlement in low-carbon martensitic steel

Yuji Momotani; Akinobu Shibata; Daisuke Terada; Nobuhiro Tsuji
Feb 2017 in International Journal of Hydrogen Energy
DOI: 10.1016/J.IJHYDENE.2016.09.188

Microstructural and crystallographic features of hydrogen-related fracture in lath martensitic steels

Akinobu Shibata;  Yuji Momotani;  Tamotsu Murata;  Takahiro Matsuoka;  Mizuki Tsuboi;  Nobuhiro Tsuji​​​​​​​
Jan 2017 in Materials Science and Technology
DOI: 10.1080/02670836.2017.1312210

Cold-rolling and recrystallization textures of a nano-lamellar AlCoCrFeNi2.1 eutectic high entropy alloy

Wani, I. S.;  Bhattacharjee, T.;  Sheikh, S.;  Clark, I. T.;  Park, M. H.;  Okawa, T.;  Guo, S.;  Bhattacharjee, P. P.;  Tsuji, N.​​​​​​​
2017 in Intermetallics
DOI: 10.1016/J.INTERMET.2016.12.018

Mechanical properties of fully martensite microstructure in Ti-6Al-4V alloy transformed from refined beta grains obtained by rapid heat treatment (RHT)

Chong, Yan;  Bhattacharjee, Tilak;  Yi, Jangho;  Shibata, Akinobu;  Tsuji, Nobuhiro​​​​​​​
2017 in Scripta Materialia
DOI: 10.1016/J.SCRIPTAMAT.2017.05.038

Effect of severe cold-rolling and annealing on microstructure and mechanical properties of AlCoCrFeNi2.1 eutectic high entropy alloy

Wani, I. S.;  Wani, I. S.;  Bhattacharjee, T.;  Bhattacharjee, T.;  Sheikh, S.;  Sheikh, S.;  Lu, Y.;  Lu, Y.;  Chatterjee, S.;  Chatterjee, S.;  Guo, S.;  Guo, S.;  Bhattacharjee, P. P.;  Bhattacharjee, P. P.;  Tsuji, N.;  Tsuji, N.​​​​​​​
2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/194/1/012018

Role of Different Kinds of Boundaries Against Cleavage Crack Propagation in Low-Temperature Embrittlement of Low-Carbon Martensitic Steel

Mizuki Tsuboi; Akinobu Shibata; Daisuke Terada; Nobuhiro Tsuji
2017 in Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
DOI: 10.1007/S11661-017-4107-9

Fracture surface topography analysis of the hydrogen-related fracture propagation process in martensitic steel

Shibata, Akinobu; Matsuoka, Takahiro; Ueno, Akira; Nobuhiro Tsuji
2017 in International Journal of Fracture
DOI: 10.1007/S10704-017-0182-6

Mechanism of Dynamic Formation of Ultrafine Ferrite Grains during High Temperature Processing in Steel

Zhao, Lijia;  Park, Nokeun;  Tian, Yanzhong;  Shibata, Akinobu;  Tsuji, Nobuhiro​​​​​​​
2017 in Advanced Engineering Materials
DOI: 10.1002/ADEM.201600778

Novel thermomechanical processing methods for achieving ultragrain refinement of low-carbon steel without heavy plastic deformation

Zhao, Lijia;  Park, Nokeun;  Tian, Yanzhong;  Chen, Shuai;  Shibata, Akinobu;  Tsuji, Nobuhiro​​​​​​​
2017 in Materials Research Letters
DOI: 10.1080/21663831.2016.1208301

The phase stability of equiatomic CoCrFeMnNi high-entropy alloy: Comparison between experiment and calculation results

Park, Nokeun; Lee, Byeong-Joo; Tsuji, Nobuhiro
2017 in Journal of Alloys and Compounds
DOI: 10.1016/J.JALLCOM.2017.05.175

SEM/EBSD Analysis on Globularization Behavior of Lamellar Microstructure in Ti-6Al-4V During Hot Deformation and Annealing

Yoshinori Ito; Shogo Murakami; Nobuhiro Tsuji
2017 in Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
DOI: 10.1007/S11661-017-4180-0

Mechanical Properties and Deformation Mechanism of Mg-Y Alloy with Various Grain Sizes

Kawarada, Ichiro;  Zheng, Ruixiao;  Shibata, Akinobu;  Somekawa, Hidetoshi;  Ogata, Shigenobu;  Tsuji, Nobuhiro​​​​​​​
2017 in PROCEEDINGS OF THE 3RD PAN AMERICAN MATERIALS CONGRESS
DOI: 10.1007/978-3-319-52392-7_41

On the Stability of Reversely Formed Austenite and Related Mechanism of Transformation in an Fe-Ni-Mn Martensitic Steel Aided by Electron Backscattering Diffraction and Atom Probe Tomography

Hamidreza Koohdar;  Mahmoud Nili-Ahmadabadi;  Mohammad Habibi-Parsa;  Hamid Reza Jafarian;  Tilak Bhattacharjee;  Nobuhiro Tsuji​​​​​​​
2017 in Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
DOI: 10.1007/S11661-017-4288-2

Ultimate Rolling Texture in Pure Aluminum Highly Deformed by Accumulative Roll Bonding: Taylor Orientation Formed beyond Grain Subdivision

Yoji Miyajima; Daisuke Kashioka; Nobuhiro Tsuji
2017 in Materials Transactions
DOI: 10.2320/MATERTRANS.M2017131

Realizing Ultrafine Grained Steel by Simple Hot Deformation Using Dynamic Transformation and Subsequent Dynamic Recrystallization Mechanisms

Zhao, L.;  Park, N.;  Tian, Y.;  Shibata, A.;  Tsuji, N.​​​​​​​
2017 in IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/194/1/012026

A novel ultrafine-grained Fe-22Mn-0.6C TWIP steel with superior strength and ductility

Y.Z. Tian;  Y. Bai;  Lijia Zhao;  S. Gao;  H.K. Yang;  A. Shibata;  Z.F. Zhang;  N. Tsuji​​​​​​​
2017 in Materials Characterization
DOI: 10.1016/J.MATCHAR.2016.12.026

日本金属学会第65回論文賞　組織部門、20017.9.　社団法人日本金属学会