Content area
Abstract
This work studied the formation of the α″ martensite and amorphous phases of TiNbTaZr alloy incorporated with TiO2 particles during friction stir processing. Formation of the amorphous phase in the top surface mainly results from the dissolution of oxygen, rearrangement of the lattice structure, and dislocations. High-stress stemming caused by dislocations and high-stress concentrations at crystal–amorphous interfaces promote the formation of α″ martensite. Meanwhile, an α″ martensitic transformation is hindered by oxygen diffusion from TiO2 to the matrix, thereby increasing resistance to shear.
Details
Title
α″ Martensite and Amorphous Phase Transformation Mechanism in TiNbTaZr Alloy Incorporated with TiO2 Particles During Friction Stir Processing
Author
Ruoshi Ran 1 ; Liu, Yiwei 1 ; Wang, Liqiang 1 ; Lu, Eryi 2 ; Xie, Lechun 3 ; Lu, Weijie 1 ; Wang, Kuaishe 4 ; Lai-Chang, Zhang 5
1 State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
2 Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
3 Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, China
4 School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, China
5 School of Engineering, Edith Cowan University, Perth, WA, Australia
1 State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
2 Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
3 Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, China
4 School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, China
5 School of Engineering, Edith Cowan University, Perth, WA, Australia
Pages
1986-1991
Publication year
2018
Publication date
Jun 2018
ISSN
10735623
e-ISSN
15431940
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2016179609
Copyright
Metallurgical and Materials Transactions A is a copyright of Springer, (2018). All Rights Reserved.