Journal ArticleDOI
Room-temperature equal channel angular extrusion of pure magnesium
TLDR
In this paper, the authors demonstrate a way to impart severe plastic deformation to magnesium at room temperature to produce ultrafine grain size of similar to 250 nm through equal channel angular extrusion (ECAE).About:
This article is published in Acta Materialia.The article was published on 2010-05-01. It has received 229 citations till now. The article focuses on the topics: Equal channel angular extrusion & Deformation mechanism.read more
Citations
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Journal ArticleDOI
Structural evolutions of metallic materials processed by severe plastic deformation
TL;DR: In this paper, a comprehensive review on important micro-structural evolutions and major microstructural features induced by SPD processing in single-phase metallic materials with face-centered cubic structures, body-centered cylindrical structures, and hexagonal close-packed structures, as well as in multi-phase alloys is provided.
Journal ArticleDOI
Development of low-alloyed and rare-earth-free magnesium alloys having ultra-high strength
Hucheng Pan,Gaowu Qin,Yunmiao Huang,Yuping Ren,Xuechao Sha,Xiaodong Han,Zhi-Quan Liu,Cai-Fu Li,Xiaolei Wu,Houwen Chen,Cong He,Linjiang Chai,Yunzhi Wang,Jian Feng Nie,Jian Feng Nie +14 more
TL;DR: In this article, a low-alloyed Mg-2Sn-2Ca alloy (in wt.%) is reported, which exhibits tunable ultra-high tensile yield strength (360-440 MPa) depending on extrusion parameters.
Journal ArticleDOI
Recent developments in rare-earth free wrought magnesium alloys having high strength: A review
TL;DR: In this paper, a review of recent researches on the rare-Earth free Magnesium alloys is presented, and the new strengthening mechanism, such as the solute clustering which was recently observed in Magnesium-Rare-Earth alloys and the other Rare-Earth-free Magnesium systems, is suggested.
Journal ArticleDOI
Mechanistic investigation of a low-alloy Mg–Ca-based extrusion alloy with high strength–ductility synergy
Hucheng Pan,Rui Kang,Li Jingren,Hongbo Xie,Zhuoran Zeng,Qiuyan Huang,Changlin Yang,Yuping Ren,Gaowu Qin +8 more
TL;DR: In this article, a low-alloy Mg-Ca-based alloy that overcomes this strength-ductility trade-off is designed, which has an excellent tensile yield strength (∼425 MPa).
Journal ArticleDOI
Ultrafine-grain metals by severe plastic deformation
TL;DR: In this paper, the main features of the obtained microstructures are presented, the most important advantage of ultrafine-grain materials -an enhanced mechanical strength with respect to their coarse grained counterparts - is discussed.
References
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Book
Recrystallization and Related Annealing Phenomena
F.J. Humphreys,M. Hatherly +1 more
TL;DR: In this paper, the authors discuss the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes, and the subjects treated in this book are all active research areas and form a major part of at least four regular international conference series.
Journal ArticleDOI
Overview no. 42 Texture development and strain hardening in rate dependent polycrystals
R.J. Asaro,Alan Needleman +1 more
TL;DR: In this article, a rate dependent constitutive model is developed for polycrystals subjected to arbitrarily large strains, and the model is used to predict deformation textures and large-strain strain hardening behavior following various stressstrain histories for single phase f.c. aggregates that deform by crystallographic slip.
Journal ArticleDOI
Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B
Sean R. Agnew,Ozgur Duygulu +1 more
TL;DR: In this paper, a combination of experimental and simulation techniques were used to investigate the plastic behavior of wrought magnesium alloy and found that an increased activity of non-basal dislocations provides a self-consistent explanation for the observed changes in the anisotropy with increasing temperature.
Journal ArticleDOI
The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys
Junichi Koike,Takayuki Kobayashi,Toshiji Mukai,H. Watanabe,Mayumi Suzuki,Kouichi Maruyama,Kenji Higashi +6 more
TL;DR: In this paper, fine-grained alloys of Mg-3Al-1Zn-0.2Mn in wt.% were obtained by an equal-channel angular extrusion technique and subsequent annealing at elevated temperatures.
Journal ArticleDOI
Influence of grain size on the compressive deformation of wrought Mg-3Al-1Zn
TL;DR: The influence of the grain size on the flow stress of extruded Mg-3Al-1Zn tested in compression is examined in this paper, where samples with grain sizes varying between 3 and 23 μm were prepared by altering the extrusion conditions.