Effect of Solid Solution Temperature on Microstructure and Properties of IMI834 Titanium Alloy Forging
LI Siqing1,2, WANG Xu1,2, DENG Yuting1,2, HUANG Xu1,2
1. Aviation Key Laboratory of Science and Technology on Advanced Titanium Alloys, AECC Beijing Institute of Aeronautical Matericals, Beijing 100095, China;
2. Aviation Key Laboratory on Advanced Titanium Alloys of AECC, Beijing 100095, China
The effect of solid solution temperature (aging at 700℃) in two phase field (α+β) on microstructure and properties of IMI834 titanium alloy forging was studied. Optical and transmission electron microscopy were employed to analyze the microstructure. The tensile properties at room and 600℃ and thermal stability and creep rupture property at 600℃ were tested. The results show that with the increase of solid solution temperature, the content of primary α phase decrease and the size of transformed β and secondary α colonies increase slightly, the tensile plasticity decrease slightly at room and 600℃, the creep rupture property is significantly improved at 600℃. The thermal stability of samples by heat treatment with solid solution in the range of 1000–1030℃ is basically equivalent. The effect of solid solution temperature on properties is closely to element distribution and the size of transformed β and secondary α colonies.
作者简介: 李四清：高级工程师，研究方向为高温钛合金。
引用本文:
李四清，王旭，邓雨亭，黄旭. 固溶温度对IMI834钛合金锻件组织和性能的影响[J]. 航空制造技术, 2019, 62(19): 47-52.
LI Siqing, WANG Xu, DENG Yuting, HUANG Xu. Effect of Solid Solution Temperature on Microstructure and Properties of IMI834 Titanium Alloy Forging. Aeronautical Manufacturing Technology, 2019, 62(19): 47-52.
2019, 
