Surface Mechanical Attrition Treatment-Induced Dissolution of Cu4Ti Precipitates in Cu—4wt-%Ti Alloy
Abstract
The microstructural evolution of an overaged Cu-4wt-%Ti alloy associated with surface mechanical attrition treatment (SMAT) has been studied by X-ray diffraction, scanning electron microscope and transmission electron microscopy. The results show that β-Cu4Ti precipitates in the topmost surface layer were dissolved after SMAT, and Cu solid solution phase with a fine grain size of approximately 25 nm was observed. Dislocation activities were the main deformation mechanism of lamellar structure in the overaged Cu-4wt-%Ti alloy. The twinning in lamellar Cu phase was inhibited by the β-Cu4Ti precipitates.
Recommended Citation
H. Wei et al., "Surface Mechanical Attrition Treatment-Induced Dissolution of Cu4Ti Precipitates in Cu—4wt-%Ti Alloy," Materials Science and Technology (United Kingdom), vol. 36, no. 6, pp. 661 - 667, Taylor & Francis Ltd., Apr 2020.
The definitive version is available at https://doi.org/10.1080/02670836.2020.1726600
Department(s)
Materials Science and Engineering
Keywords and Phrases
Aging Treatment; Dislocation Activities; Dissolution; Surface Mechanical Attrition Treatment; β-Cu4Ti Precipitates
International Standard Serial Number (ISSN)
0267-0836; 1743-2847
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2020 Institute of Materials, Minerals and Mining, All rights reserved.
Publication Date
01 Apr 2020
Comments
This work was supported by the National Natural Science Foundation of China [grant number 51374151], Higher Education Technology Innovation Project in Shanxi Province [grant number 2019L0170].