Fundamentals and application of solid-state phase transformations for advanced high strength steels containing metastable retained austenite

Z Dai, H Chen, R Ding, Q Lu, C Zhang, Z Yang… - Materials Science and …, 2021 - Elsevier
Over many decades, significant efforts have been made to improve the strength-elongation
product of advanced high strength steels (AHSSs) by creating tailored multi-phase …

Bifunctional nanoprecipitates strengthen and ductilize a medium-entropy alloy

Y Yang, T Chen, L Tan, JD Poplawsky, K An, Y Wang… - Nature, 2021 - nature.com
Single-phase high-and medium-entropy alloys with face-centred cubic (fcc) structure can
exhibit high tensile ductility, and excellent toughness,, but their room-temperature strengths …

High dislocation density–induced large ductility in deformed and partitioned steels

BB He, B Hu, HW Yen, GJ Cheng, ZK Wang, HW Luo… - Science, 2017 - science.org
A wide variety of industrial applications require materials with high strength and ductility.
Unfortunately, the strategies for increasing material strength, such as processing to create …

Facile route to bulk ultrafine-grain steels for high strength and ductility

J Gao, S Jiang, H Zhang, Y Huang, D Guan, Y Xu… - Nature, 2021 - nature.com
Steels with sub-micrometre grain sizes usually possess high toughness and strength, which
makes them promising for lightweighting technologies and energy-saving strategies. So far …

Chemical boundary engineering: A new route toward lean, ultrastrong yet ductile steels

R Ding, Y Yao, B Sun, G Liu, J He, T Li, X Wan… - Science …, 2020 - science.org
For decades, grain boundary engineering has proven to be one of the most effective
approaches for tailoring the mechanical properties of metallic materials, although there are …

Enhanced ductility and toughness in an ultrahigh-strength Mn–Si–Cr–C steel: The great potential of ultrafine filmy retained austenite

G Gao, H Zhang, X Gui, P Luo, Z Tan, B Bai - Acta Materialia, 2014 - Elsevier
Three heat-treatment routes incorporating bainite formation, namely bainite-based
quenching plus tempering, bainite austempering and bainite-based quenching plus …

Analysis of microstructure evolution in quenching and partitioning automotive sheet steel

JG Speer, E De Moor, KO Findley, DK Matlock… - … materials transactions A, 2011 - Springer
Extensive research efforts are underway globally to develop new steel microstructure
concepts for high-strength sheet products, driven largely by the need for lightweight …

Optimising the strength-ductility-toughness combination in ultra-high strength quenching and partitioning steels by tailoring martensite matrix and retained austenite

Z Wang, MX Huang - International Journal of Plasticity, 2020 - Elsevier
Undesirable fracture resistance has led to critical safety concerns in ultra-high strength
quenching and partitioning (Q&P) steels. The present work proposes a new heat treatment …

Spectral TRIP enables ductile 1.1 GPa martensite

MM Wang, CC Tasan, D Ponge, D Raabe - Acta Materialia, 2016 - Elsevier
Introduction of interlath reverted austenite is an effective method to design ductile lath
martensitic steels. The challenge in this concept is that all reverted austenite films have …

Critical assessment 7: quenching and partitioning

JG Speer, E De Moor, AJ Clarke - Materials Science and …, 2015 - journals.sagepub.com
Quenching and partitioning is a relatively new heat treatment concept to generate
microstructures containing retained austenite stabilised by carbon partitioning from …