Current challenges and opportunities in microstructure-related properties of advanced high-strength steels

D Raabe, B Sun, A Kwiatkowski Da Silva… - … Materials Transactions A, 2020 - Springer
This is a viewpoint paper on recent progress in the understanding of the microstructure–
property relations of advanced high-strength steels (AHSS). These alloys constitute a class …

Dependence of hydrogen embrittlement mechanisms on microstructure-driven hydrogen distribution in medium Mn steels

B Sun, W Krieger, M Rohwerder, D Ponge, D Raabe - Acta Materialia, 2020 - Elsevier
The risk of hydrogen embrittlement (HE) is currently one important factor impeding the use of
medium Mn steels. However, knowledge about HE in these materials is sparse. Their …

Revealing fracture mechanisms of medium manganese steels with and without delta-ferrite

B Sun, D Palanisamy, D Ponge, B Gault, F Fazeli… - Acta Materialia, 2019 - Elsevier
Medium Mn steels possess a composite like microstructure containing multiple phase
constituents like metastable austenite, ferrite, δ-ferrite and α′-martensite with a wide range …

Temperature dependent strain hardening and fracture behavior of TWIP steel

M Madivala, A Schwedt, SL Wong, F Roters… - International Journal of …, 2018 - Elsevier
In this study, the strain-hardening and fracture behavior of high manganese austenitic
twinning induced plasticity (TWIP) steel at temperatures ranging from 123 K to 773 K were …

On the characteristics of Portevin–Le Chatelier bands in cold-rolled 7Mn steel showing transformation-induced plasticity

F Yang, H Luo, E Pu, S Zhang, H Dong - International Journal of Plasticity, 2018 - Elsevier
Strain localization during tensile deformation of cold-rolled and annealed 7Mn steel were
investigated under various strain rates and deformation temperatures. The retained …

[HTML][HTML] Influence of oxides on the cryogenic tensile properties of the laser aided additive manufactured CoCrNi medium entropy alloy

F Weng, Y Chew, Z Zhu, S Sui, C Tan, X Yao… - Composites Part B …, 2021 - Elsevier
The CoCrNi medium entropy alloy with different amounts of oxides was fabricated by laser
aided additive manufacturing (LAAM). The cryogenic tensile properties and microstructure …

Microstructure, mechanical properties and strengthening mechanisms of AlCu5MnCdVA aluminum alloy fabricated by selective laser melting

Z Hu, H Zhang, H Zhu, Z Xiao, X Nie, X Zeng - Materials Science and …, 2019 - Elsevier
Selective laser melting (SLM) was employed to fabricate the aluminum alloy AlCu5MnCdVA
in this work. The microstructure, mechanical behavior, anisotropy, and strengthening …

Macroscopic and microscopic characterizations of Portevin-LeChatelier effect in austenitic stainless steel using high-temperature digital image correlation analysis

SY Lee, C Takushima, J Hamada, N Nakada - Acta Materialia, 2021 - Elsevier
Using digital image correlation (DIC) analysis in an Fe-19Cr-13Ni-0.2 C austenitic stainless
steel (mass%), the tensile deformation behavior accompanied with the Portevin-LeChatelier …

Overview of dynamic strain aging and associated phenomena in Fe–Mn–C austenitic steels

M Koyama, T Sawaguchi, K Tsuzaki - isij international, 2018 - jstage.jst.go.jp
This paper presents an overview of the recent works on dynamic strain aging (DSA) of Fe–
Mn–C austenitic steels including Hadfield and twinning-induced plasticity (TWIP) steels …

Mesoscopic nature of serration behavior in high-Mn austenitic steel

S Hwang, M Park, Y Bai, A Shibata, W Mao, H Adachi… - Acta Materialia, 2021 - Elsevier
We have thoroughly clarified the mesoscopic nature of serration behavior in a high-Mn
austenitic steel in connection with its characteristic localized deformation. A typical high-Mn …