Journal ArticleDOI
Grain boundary segregation engineering and austenite reversion turn embrittlement into toughness: Example of a 9 wt.% medium Mn steel
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TLDR
In this article, the authors studied grain boundary embrittlement in a quenched and tempered Fe-Mn high-purity model martensite alloy using Charpy impact tests and grain boundary characterization by atom probe tomography.About:
This article is published in Acta Materialia.The article was published on 2015-03-01. It has received 219 citations till now. The article focuses on the topics: Embrittlement & Austenite.read more
Citations
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Design of a twinning-induced plasticity high entropy alloy
Yun Deng,Yun Deng,Cemal Cem Tasan,Konda Gokuldoss Pradeep,Konda Gokuldoss Pradeep,Hauke Springer,Aleksander Kostka,Dierk Raabe +7 more
TL;DR: In this article, a liquid metallurgy synthesized, non-equiatomic Fe 40 Mn 40 Co 10 Cr 10 high entropy alloy is designed to undergo mechanically-induced twinning upon deformation at room temperature.
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A TRIP-assisted dual-phase high-entropy alloy: Grain size and phase fraction effects on deformation behavior
TL;DR: In this article, the authors present a systematic microstructure oriented mechanical property investigation for a newly developed class of transformation-induced plasticity-assisted dual-phase high-entropy alloys (TRIP-DP-HEAs) with varying grain sizes and phase fractions.
Quantification of Grain Boundary Segregation in Nanocrystalline Material
TL;DR: It is demonstrated how this can be achieved using an approach that combines the accuracy of structural characterization in transmission electron microscopy with the 3D chemical sensitivity of atom probe tomography, which indicates that ω is the most influential crystallographic parameter in this regime.
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Thermomechanical processing of advanced high strength steels
Jingwei Zhao,Zhengyi Jiang +1 more
TL;DR: A comprehensive review of recent progress in TMP of AHSSs, with focus on the processing-microstructure-property relationships of the processed AHSS, is provided in this paper.
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Overview of hydrogen embrittlement in high-Mn steels
TL;DR: An overview of the hydrogen embrittlement research carried out on high-Mn steels is presented in this article, where the authors discuss the contribution of each of these factors to the hydrogen susceptibility of these steels and discuss pathways how certain embrittlements mechanisms can be hampered or even inhibited.
References
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Invited review article: Atom probe tomography.
Thomas F. Kelly,Michael K Miller +1 more
TL;DR: The technique of atom probe tomography is reviewed with an emphasis on illustrating what is possible with the technique both now and in the future, and how to fabricate suitable specimens from new classes of materials.
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Overview of processing, microstructure and mechanical properties of ultrafine grained bcc steels
TL;DR: In this paper, an overview of various techniques to fabricate ultrafine grained bcc steels, the corresponding microstructures, and the resulting spectrum of mechanical properties is presented.
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Grain boundary segregation engineering in metallic alloys: A pathway to the design of interfaces
Dierk Raabe,Michael Herbig,Stefanie Sandlöbes,Yujiao Li,Darius Tytko,Margarita Kuzmina,Dirk Ponge,Pyuck-Pa Choi +7 more
TL;DR: In this article, the authors proposed a solute decoration approach to manipulate specific grain boundary structures, compositions and properties that enable useful material behavior, such as energy, mobility, structure, and cohesion.
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Mechanism of Work Hardening in Hadfield Manganese Steel.
Y. N. Dastur,W. C. Leslie +1 more
TL;DR: In this article, a single-phase austenitic condition was studied and the apparent activation energies for the appearance and disappearance of serrations were found to be 104 and 146 kJ/mol, respectively, for static strain aging between 300 and 400 °C.
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The role of chemical bonding in grain boundary embrittlement
R.P. Messmer,Clyde L. Briant +1 more
TL;DR: In this paper, it was shown that strong embrittling elements draw charge from the neighboring metal atoms onto themselves and thus remove charge from metal-metal bonds which hold the grain boundary together and weaken them.