A phenomenon of strain induced bainitic transformation and its effect on strength enhancement in a lightweight transformation-induced-plasticity steel

J Wang, Q Yang, X Wang, Y Zhao, L Wang - Materials Science and …, 2019 - Elsevier
… -based lightweight steel was used to investigate the stability and transformation reactions of
… A phenomenon of strain-induced bainitic transformation was ascertained. Tensile properties …

Fatigue properties of transformation-induced plasticity and dual-phase steels for auto-body lightweight: Experiment, modeling and application

ZG Hu, P Zhu, J Meng - Materials & Design, 2010 - Elsevier
… strength of TRIP steel are due to the gradually strain-induced transformation of retained
austenite … The phase transformation is accompanied by a volume expansion, resulting in plastic …

Strain hardening by dynamic slip band refinement in a high-Mn lightweight steel

E Welsch, D Ponge, SMH Haghighat, S Sandlöbes… - Acta Materialia, 2016 - Elsevier
… Neither strain-induced phase transformation, nor deformation twinning was observed
during straining. The deformation substructure in the deformed material solely consists of …

Overcoming strength-ductility trade-off via subzero martensitic transformation in medium-Mn lightweight steel

DW Kim, S Lee, SS Sohn - Scripta Materialia, 2022 - Elsevier
… accelerates its martensitic transformation, the strain-hardening rate … As the tensile deformation
proceeds further, the strain-… The strengthening induced from the additionally transformed

Novel ferrite–austenite duplex lightweight steel with 77% ductility by transformation induced plasticity and twinning induced plasticity mechanisms

SS Sohn, K Choi, JH Kwak, NJ Kim, S Lee - Acta Materialia, 2014 - Elsevier
transformation is triggered by the supply of strain energy as a consequence of dislocation
pile-ups at strong barriers such as grain boundaries [23], [39], the martensitic transformation

[HTML][HTML] Influence of manganese on deformation behavior of lightweight steel at different strain rate

Z He, H Yang, Y He, W Zheng, Z Guan, L Li - Journal of Materials Research …, 2020 - Elsevier
… 8(a)-(c) that the austenite in 3.5 Mn lightweight steel is transformed into α′-martensite during
the … 8(d)-(f), the austenite in 10 Mn lightweight steel is transformed into ε-martensite and …

The microstructure evolution and room temperature deformation behavior of ferrite-based lightweight steel

PD Nezhadfar, A Zarei-Hanzaki, SS Sohn… - Materials Science and …, 2016 - Elsevier
… Obviously these deformation twins are elongated through the coarse ferrite grains, smooth
in appearance at low strain while are fragmented at higher imposed strain. Considering the …

Dramatic improvement of strain hardening and ductility to 95% in highly-deformable high-strength duplex lightweight steels

SS Sohn, H Song, JH Kwak, S Lee - Scientific reports, 2017 - nature.com
… grain size greatly raises the elastic strain energy required for martensitic transformation,
and because the Ms … The strain required for martensitic transformation is lower in the A900 …

Effect of strain-induced age hardening on yield strength improvement in ferrite-austenite duplex lightweight steels

H Song, SG Lee, SS Sohn, JH Kwak, S Lee - Metallurgical and Materials …, 2016 - Springer
… Ferrite-austenite lightweight steels showing TRansformation-induced plasticity were developed
by varying the aging temperature with or without prestraining, and their effects on tensile …

… strength-ductility combination in a Ni-modified medium manganese lightweight steel with the determining role of phase transformation and recrystallization behaviour

S Kumar, A Sarkar, AD Prasad, M Paliwal… - Materials Science and …, 2022 - Elsevier
… which resulted in substantial transformation of austenite to … that the strain induced martensitic
transformation in steels is … occurrence of strain induced martensite transformation during …