Effects of Activated Sintering Process on Properties and Microstructure of W-15Cu Alloy

The effects of activated sintering technology of H2 atmosphere sintering on the microstructure and properties of W-15Cu alloy using ultrafine W-15Cu composite powder fabricated by spray drying calcining-continuous reduction technology were investigated.The experimental results showed that W-15Cu all...

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Bibliographic Details
Published in:Journal of Wuhan University of Technology. Materials science edition 2010-12, Vol.25 (6), p.909-913
Main Authors: Shi, Xiaoliang, Wang, Shuwei, Yang, Xingyong, Zhang, Qiaoxin, Wang, Yufu
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Grain size
Materials Science
Microstructure
Sintering
Studies
合金性能
平均晶粒尺寸
微观结构
活化烧结
烧结工艺
烧结气氛
烧结过程
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Summary:The effects of activated sintering technology of H2 atmosphere sintering on the microstructure and properties of W-15Cu alloy using ultrafine W-15Cu composite powder fabricated by spray drying calcining-continuous reduction technology were investigated.The experimental results showed that W-15Cu alloy,consolidated by activated sintering technology of H2 atmosphere sintering for 1 h at 1300 ℃,with 98.5 % relative density,transverse rupture strength 1218 MPa,Vickers hardness HV0.5 378,average grain size about 1.2 μm and thermal conductivity 192 W/m·K,was obtained.In comparison to the normal sintering process,activated sintering process to W-15Cu alloy could be achieved at lower sintering temperature.Furthermore,better properties in activated sintered compacts were obtained,and activated sintering process resulted in finer microstructure and excellent properties.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-010-0118-8