Size effect on the mechanical behavior of single crystalline Fe-31.2Pd (at.%) micropillars

Xiao, Fei1,4; Chu, Kangjie2; Jin, Xuejun1; Ren, Fuzeng3; Fukuda, Takashi4; Kakeshita, Tomoyuki4; Sun, Qingping2

2018-07-15

10.1016/j.scriptamat.2018.04.026

SCRIPTA MATERIALIA   影响因子和分区

1359-6462

The size effect on the mechanical behaviors of single crystalline Fe-31.2Pd (at.%) micropillars with four different pillar diameters (approximately 2 mu m,1 mu m, 500 nm and 400 nm) were studied by compressing in the [001] direction. Both the Young's modulus and yield stress increase with the decrease of pillar diameter. The main defects in the plastically deformed pillars are the {111} deformation twins, which could be covered by high density of dislocations after further plastic deformation in a 400 nm pillar. A repeatable elastic-like strain similar to 4% was observed for more than 40,000 cycles. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Shape memory alloys Martensitic phase transformation Plastic deformation Micropillars

SCI ; EI

英语

通讯

Japan Society for the Promotion of Science[26289230]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000435051400031

PERGAMON-ELSEVIER SCIENCE LTD

20181805130101

Binary alloys ; Crystalline materials ; Elastic moduli ; Martensitic transformations ; Palladium alloys ; Plastic deformation ; Shape memory effect ; Silicon alloys ; Twinning ; Yield stress

Metallography:531.2 ; Iron Alloys:545.2 ; Precious Metals:547.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Crystalline Solids:933.1 ; Crystal Growth:933.1.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composite, 800 Dong Chuan Rd, Shanghai 200240, Peoples R China
2.Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Hong Kong, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Osaka Univ, Grad Sch Engn, Dept Mat Sci & Engn, 2-1 Yamada Oka, Suita, Osaka 5650871, Japan

Xiao, Fei,Chu, Kangjie,Jin, Xuejun,et al. Size effect on the mechanical behavior of single crystalline Fe-31.2Pd (at.%) micropillars[J]. SCRIPTA MATERIALIA,2018,152:141-145.

Xiao, Fei.,Chu, Kangjie.,Jin, Xuejun.,Ren, Fuzeng.,Fukuda, Takashi.,...&Sun, Qingping.(2018).Size effect on the mechanical behavior of single crystalline Fe-31.2Pd (at.%) micropillars.SCRIPTA MATERIALIA,152,141-145.

Xiao, Fei,et al."Size effect on the mechanical behavior of single crystalline Fe-31.2Pd (at.%) micropillars".SCRIPTA MATERIALIA 152(2018):141-145.