Journal ArticleDOI
Atom probe tomographic study of a friction-stir-processed Al–Mg–Sc alloy
TLDR
The microstructure of a twin-roll-cast Al-4.5Mg-0.28Sc at.% alloy after friction-stir processing, performed at two tool rotational rates, was investigated by atom probe tomography as discussed by the authors.About:
This article is published in Acta Materialia.The article was published on 2012-12-01. It has received 51 citations till now. The article focuses on the topics: Grain boundary.read more
Citations
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Journal ArticleDOI
Laser Powder Bed Fusion of Al-Mg-Zr Alloy: Microstructure, Mechanical Properties and Dynamic Precipitation
Journal ArticleDOI
Hall–Petch relation and grain boundary slipping in Al Mg Sc alloys with fine equiaxed grain structure
L. Zhang,C.Y. Liu,Hong-yan Xie +2 more
TL;DR: In this article , a fine equiaxed grain structure and free of Mg segregation and dislocations were fabricated by friction stir processing and post-solution treatment to study the deformation behavior of Al Mg base alloys at room and elevated temperatures.
Journal ArticleDOI
Inhibiting cracking and improving strength for additive manufactured Al CoCrFeNi high entropy alloy via changing crystal structure from BCC-to-FCC
TL;DR: In this article , the body-centered cubic (BCC) phase with very high hardness (∼670 HV) in LPBF printed AlxCoCrFeNi(x = 1, 0.7) HEAs causes cracking due to the plastic incompatibility between grain boundaries.
Journal ArticleDOI
Revealing trace Si effect on precipitation behavior and properties of Cu-Cr-Zr alloy: Experiments and first-principles calculations
Jianping Qu,Shipeng Yue,W. Zhang,X.H. Chen,Z. K. Guo,Bowen Dong,Zhixin Ren,Jinchuan Jie,T.J. Li +8 more
TL;DR: In this paper , the effect of Si addition on precipitation behavior and related properties of Cu-Cr-Zr-(Si) alloy was investigated for higher performance, and it was indicated that the growth of Cr-rich phase in Cu-crZr-Si alloy is delayed, which may be attributed to the decrease of Cu/Cr interface energy due to the addition of Si, as confirmed by first principles calculations.
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Quantitated heterogeneity of serrated flow and the microstructural analysis in stirred zone
TL;DR: In this paper , a general framework on the time structure of stress discontinuities associated with Portevin-Le Chatelier (PLC) effect was explored by the statistics and the quantitative analysis based on multifractal theory.
References
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Book
Friction Stir Welding and Processing
Rajiv S. Mishra,Zongyi Ma +1 more
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Book
Deformation and Fracture Mechanics of Engineering Materials
TL;DR: In this article, the authors present an overview of fracture mechanics of engineering materials and examine the role of the transition temperature approach to fracture control in the engineering failure process, as well as various aspects of fracture toughness.
Book
The Hardness of Metals
TL;DR: Hardness measurements with conical and pyramidal indenters as mentioned in this paper have been used to measure the area of contact between solids and the hardness of ideal plastic metals. But they have not yet been applied to the case of spherical indenters.
Journal ArticleDOI
JCPDS-International Centre for Diffraction Data
Camden R. Hubbard,G.J. McCarthy +1 more