| Superplastic bulging capability of Ti-6Al-4V buttcover plate |
| |
| 引用本文： | 张凯锋,王刚,吴德忠,郑海荣,陈惠滨. Superplastic bulging capability of Ti-6Al-4V buttcover plate[J]. 中国有色金属学会会刊, 2002, 12(2): 251-255 |
| |
| 作者姓名： | 张凯锋 王刚 吴德忠 郑海荣 陈惠滨 |
| |
| 作者单位： | SchoolofMaterialsScienceandEngineering,HarbinInstituteofTechnology,Harbin150001,China |
| |
| 摘 要： | The investigation on the superplastic bugling capability of 1.5 mm mill annealed Ti-6A1-4V buttcover plate by means of manual gas tungsten arc welding (M-GTAW) and fusion type plasma arc welding (F-PAW) have been evaluated respectivdy. The result shows that untreated Ti-6A1-4V buttcover plate by M-GTAW exhibits no superplasticity,while the same untreated plate by F-PAW, shows good superplastic ability because of extremely fine acicular martensite microstructure of weld metal. To the buttcover plate by M-GTAW, the microstructure of weld metal changed into streaky α structure which exhibits good superplasticity from the original//structure under the condition of the constant temperature of 940℃ with the deformation degree of 45 %, and changed into the fine equiaxed grain which possesses excellent superplastic ahilitv under the condition of the constant temperature of 800℃ with the deformation degree of 40 %.
|
| 关 键 词： | 超塑性成型 Ti-6Al-4V合金 等温热压 拼接板 双相合金 钛铝钒 |
Superplastic bulging capability of Ti-6Al-4V buttcover plate |
| |
| Abstract: | The investigation on the superplastic bugling capability of 1.5 mm mill annealed Ti-6Al-4V buttcover plate by means of manual gas tungsten arc welding (M-GTAW) and fusion type plasma arc welding (F-PAW) have been evaluated respectively.The result shows that untreated Ti-6Al-4V buttcover plate by M-GTAW exhibits no superplasticity,while the same untreated plate by F-PAW,shows good superplastic ability because of extremely fine acicular martensite microstructure of weld metal.To the buttcover plate by M-GTAW,the microstructure of weld metal changed into streaky α structure which exhibits good superplasticity from the original β structure under the condition of the constant temperature of 940 ℃ with the deformation degree of 45%,and changed into the fine equiaxed grain which possesses excellent superplastic ability under the condition of the constant temperature of 800 ℃ with the deformation degree of 40%. |
| |
| Keywords: | superplastic forming Ti 6Al 4V alloy isothermal hot compression buttcover plate |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
