Author(s)

Fei Shao, Wenge Chen, Hui Zhang, Bingjun Ding

School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, China.
School of Science, Xi’an Jiaotong University, Xi’an, China.

Microstructure of W-Cu alloy wire before and after hot-swaging was studied in this paper. Results show that a homogeneous microstructure of the W-Cu alloy wire was formed after hot-swaging treatment, and the tungsten particles were embedded in copper phases to form a networking structure; the W-Cu alloy wire has a microstructure of body-centered-cubic tungsten particles and face-centered-cubic copper phase, and did not change after hot-swaging. The intermediate phases have not been found during the process, but the size of the tungsten particles in the copper matrix becomes smaller. After hot-swaging, the treated W-Cu alloy wire has a relative density of 105.1%, and a conductivity of 47.2% IACS, the tensile and bending strength can be as large as 644 and 1600 MPa, respectively.

Hot-Swaging; Microstructure; W-Cu Alloy; Wire

F. Shao, W. Chen, H. Zhang and B. Ding, "Microstructure Evolution of W-Cu Alloy Wire," Materials Sciences and Applications, Vol. 3 No. 3, 2012, pp. 157-162. doi: 10.4236/msa.2012.33024.