Preparation of W-Cu alloy with high density and ultrafine grains by mechanical alloying and high pressure sintering
作者： W.T. Qiu , Y. Pang , Z. Xiao , Z. Li
DOI: 10.1016/J.IJRMHM.2016.07.013
关键词:
摘要: Abstract W-20 wt%Cu alloy, with a high sintering density of 99.2% theoretical (%TD), ultrafine grain size 500 nm, and hardness 310 HV, was fabricated by mechanical alloying pressure (HPS). The changes morphology structural evolution W-Cu powders during process were observed studied, the effects temperature on sintered compacts studied. Results showed that nanostructured (NS) alloyed (MA) obtained after 40 h milling at speed 400 rpm, alloy had nanocrystalline structure shape retention nearly full densification when HPS NS MA carried out 1050 °C 40 MPa. behavior also including nanosintering within heating global rearrangement an external applied.
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