Significance of Al2O3 particle morphology in the microstructure evolution of cold-sprayed Al-Al2O3 during unconstrained high-pressure torsion

被引：14

作者：

Shockley, J. Michael ^{[1
]}

Desrayaud, C. ^{[2
]}

Chromik, R. R. ^{[3
]}

Descartes, S. ^{[1
]}

机构：

[1] Univ Lyon, CNRS, INSA Lyon, LaMCoS UMR5259, F-69621 Villeurbanne, France

[2] Univ Lyon, Ecole Mines St Etienne, CNRS, UMR Lab Georges Friedel 5307, F-42023 St Etienne, France

[3] McGill Univ, Dept Min & Mat Engn, MH Wong Bldg,3610 Univ St, Montreal, PQ H3A 0C5, Canada

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 684卷

关键词：

Metal matrix composites; Friction; Shearing; Aluminum; Finite element modelling; Triaidality; COMMERCIAL PURITY ALUMINUM; IN-SITU TRIBOMETRY; SEVERE DEFORMATION; DUCTILE DAMAGE; COMPOSITES; BEHAVIOR; FRACTURE; WEAR; TRIAXIALITY; COATINGS;

D O I：

10.1016/j.msea.2016.12.078

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Unconstrained high pressure torsion (HP'S) tests were performed on two cold-sprayed Al-Al2O3 composites, one with spherical Al2O3 particles and the other with angular. Derivation of stress-strain curves during HPT revealed higher von Mises stress in the spherical sample compared to the angular ones, which is the opposite behavior of that observed in tension. Microstructural analysis revealed extensive crack formation in the angular sample, and fmite element modelling revealed a greater likelihood of crack formation in the vicinity of angular particles.

引用

页码：510 / 516

页数：7

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