摘要
采用冷等静压、真空烧结的方法制备TC4钛合金,研究了不同固溶温度和时效温度对TC4钛合金组织及性能的影响。结果表明:冷等静压、真空烧结的方法制备的TC4粉末钛合金的抗拉强度可达852MPa,伸长率为16%;随着固溶温度的提高,钛合金的抗拉强度提高,伸长率降低,而随着时效温度的提高,抗拉强度降低,伸长率提高。在960℃×30min固溶、470℃×4h时效时,合金的抗拉强度达到1078MPa,伸长率达到11%。
TC4 titanium alloy powder was prepared with the method of cold isostatic pressing and vacuum sintering.By adopting different solution temperature and aging temperature,the effect of heat treatment process on microstructure and properties of TC4 powder metallurgy titanium alloy was studied.The results show that tensile strength and elongation of TC4 powder metallurgy titanium alloy can reach 852 MPa and 16％,respectively.With the improvement of solid solution temperature,the tensile strength increases and the elongation decreases.With the improvement of aging temperature,the tensile strength decreases and the elongation increases.When solid solution treated at 960 ℃ for 30 min and aged at 470 ℃ for 4 h,tensile strength of the alloy reaches 1 078 MPa,and the elongation reaches 11％.
出处
《粉末冶金工业》
CAS
北大核心
2014年第5期29-32,共4页
Powder Metallurgy Industry
基金
河南省重大科技专项(102105000007)
