Tensile and superelastic behaviors of Ti-35Nb-2Ta-3Zr with gradient structure

Liqiang Wang; Yingchen Wang; Wei Huang; Jia Liu; Yujin Tang; Ling Zhang; Yuanfei Fu; Lai-Chang Zhang; Weijie Lu

Materials & Design (Sep 2020)

Tensile and superelastic behaviors of Ti-35Nb-2Ta-3Zr with gradient structure

Liqiang Wang,
Yingchen Wang,
Wei Huang,
Jia Liu,
Yujin Tang,
Ling Zhang,
Yuanfei Fu,
Lai-Chang Zhang,
Weijie Lu

Affiliations

Liqiang Wang: Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, China; State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
Yingchen Wang: State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
Wei Huang: State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
Jia Liu: Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, China; Corresponding authors.
Yujin Tang: Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, China
Ling Zhang: Electron Microscopy Center of Chongqing University, International Joint Laboratory for Light Alloys (MOE), College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China; Corresponding authors.
Yuanfei Fu: Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
Lai-Chang Zhang: School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027, Australia; Corresponding authors.
Weijie Lu: State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China

Journal volume & issue: Vol. 194
p. 108961

Abstract

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We investigated the tensile and superelastic behaviors of Ti-35Nb-2Ta-3Zr processed by double-faced friction stir processing that results in a roughly 2 times higher yield strength with an elongation of 37%. The friction stir processed specimens exhibited different superelasticity as loading cycle increased. To assess the strength and deformation of gradient structure, in situ micro compression tests were conducted on stir zone and heat affected zone, revealing higher strength in stir zone and better ductility in heat affected zone. The combination of stir zone and heat affected zone could increase the strength and maintain the ductility of the specimen simultaneously.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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