Journal ArticleDOI
Improvement of strength – ductility balance of B2-strengthened lightweight steel
TLDR
In this article, the microstructure evolution and tensile properties of a newly designed Fe-21Mn-10Al-1C-5Ni (wt.%) lightweight steel subjected to two annealing conditions (inducing partial recrystallization and full re-stallization) and subsequent aging treatment have been investigated.About:
This article is published in Acta Materialia.The article was published on 2020-06-01. It has received 71 citations till now. The article focuses on the topics: Austenite & Recrystallization (metallurgy).read more
Citations
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Overcoming the strength-ductility trade-off of an aluminum matrix composite by novel core-shell structured reinforcing particulates
TL;DR: In this article, the authors proposed an effective strategy to surmount the inverse relationship between strength and ductility of an A356 Al alloy based PRMMC by in situ synthesizing novel reinforcing particulates with a special core-shell structure.
Journal ArticleDOI
Dynamic microstructural evolution and recrystallization mechanism during hot deformation of intermetallic-hardened duplex lightweight steel
TL;DR: In this paper, a detailed analysis of the intermetallic precipitates and elemental partitioning in both the ferrite and austenite phases are performed, and two distinct restoration mechanisms are observed in this alloy viz. continuous dynamic recrystallization (CDRX) and discontinuous DRX (DDRX), which is characterized by the progressive misorientation development of subgrains into high-angle boundary during straining.
Journal ArticleDOI
Multi-principal elemental intermetallic nanoparticles synthesized via a disorder-to-order transition
Ming-Yue Cui,Chunpeng Yang,Soo Yeon Hwang,Menghao Yang,Sean Overa,Qi Dong,Yonggang Yao,Alexandra H. Brozena,David A. Cullen,Miaofang Chi,Thomas Blum,David Morris,Zou Finfrock,Xizheng Wang,Peng Zhang,V.G. Goncharov,Xiao Bin Guo,Jian Luo,Yifei Mo,Feng Jiao,Liangbing Hu +20 more
TL;DR: In this paper , a disorder-to-order phase transition approach was proposed to enable the synthesis of ultrasmall (4 to 5 nm) and stable MPEI nanoparticles (up to eight elements).
Journal ArticleDOI
Non-equiatomic FeMnCrNiAl high-entropy alloys with heterogeneous structures for strength and ductility combination
TL;DR: In this article, a nonequiatomic FeMnCrNiAl high-entropy alloy (HEA) has been processed by cold rolling and annealing to prepare samples with a fully-recrystallized structure, and composite structures of recovered and recrystallised structures.
Journal ArticleDOI
Austenite reversion through subzero transformation and tempering of a boron-doped strong and ductile medium-Mn lightweight steel
TL;DR: In this paper, the effects of subzero treatment and B doping on austenite reversion were investigated in quenched and tempered Fe 9Mn-5Al-0.3C and Fe −9Mn−5Al 0.005B (wt.%) lightweight steels.
References
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Journal ArticleDOI
Twinning-induced plasticity (TWIP) steels
TL;DR: In this paper, the authors present a review of recent developments in the field of deformation behavior of high manganese face-centered cubic γ-Fe alloys, referred to as twinning-induced plasticity, or TWIP, steels.
Journal ArticleDOI
Microstructures and Mechanical Properties of High-Strength Fe-Mn-Al-C Light-Weight TRIPLEX Steels
Georg Frommeyer,Udo Brüx +1 more
TL;DR: In this paper, the Gibbs free energy of the phase transformation {gamma}{sub fcc} {yields} {epsilon}{sub hcp} amounts to 1757 J/mol and the stacking fault energy was determined to ǫ =110 mJ/m.
Journal ArticleDOI
Brittle intermetallic compound makes ultrastrong low-density steel with large ductility
TL;DR: It is shown that an FeAl-type brittle but hard intermetallic compound (B2) can be effectively used as a strengthening second phase in high-aluminium low-density steel, while alleviating its harmful effect on ductility by controlling its morphology and dispersion.
Journal ArticleDOI
Current state of Fe-Mn-Al-C low density steels
TL;DR: A review on the physical metallurgy, processing strategies, strengthening mechanisms and mechanical properties of Fe-Mn-Al-C steels from the published literature over a period of many years, and suggests avenues for future applications of these alloys in the automotive sector as mentioned in this paper.
Journal ArticleDOI
Fe–Al–Mn–C lightweight structural alloys: a review on the microstructures and mechanical properties
TL;DR: A reason why the success of lightweight steels is strongly dependent on scientific achievements even though alloy development is closely related to industrial applications is provided.
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Brittle intermetallic compound makes ultrastrong low-density steel with large ductility
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Georg Frommeyer,Udo Brüx +1 more