宇航材料工艺2012，Vol.42Issue(4)：75-77,84,4.
两种模具材料对热等静压 TC4显微组织的影响
Effect of Two Die Material on Microstructure of Hiped TC4 Alloy
叶呈武 1王琪 1李圣刚 1郎泽保 1贾文军1
作者信息
- 1. 航天材料及工艺研究所,北京 100076
- 折叠
摘要
Abstract
The effect of mild-carbon steel and high-temperature alloy GH1131 on the microstructure of HIPed TC4 alloy was studied. The results show that mild-carbon steel die prevents the transfer of the stress for densification of TC4 during the process of HIP, different from the GH1131 die. When the die is designed,the deep cavity structure should be avoided for the mild-carbon steel. Due to the interdiffusion of elements,the alloy surface is contaminated by both of the die materials. Although the thickness of the boundary between TC4 and mild-carbon steel is slim,the alloy surface is coarse with the wave-like morphology. And the thickness of the boundary between TC4 and GH1131 is raised to more than 100 μm. In order to gain the clean and smooth material surface, the die cavity surface must be treated to form a protect layer compatible with TC4.
关键词
热等静压/钛合金/模具/显微组织Key words
HIP/ Titanium Alloy/ Die/ Microstructure引用本文复制引用
叶呈武,王琪,李圣刚,郎泽保,贾文军..两种模具材料对热等静压 TC4显微组织的影响[J].宇航材料工艺,2012,42(4):75-77,84,4.
