金属加工（热加工）Issue(4)：40-43,47,5.
固溶冷却方式对Ti150合金组织及性能的影响
Effect of solution cooling on microstructure and properties of Ti150 alloy
瞿兆银 1王清 1白家元 1牟旭祥 1刘至唯1
作者信息
- 1. 贵州航宇科技发展股份有限公司 贵州贵阳 550081
- 折叠
摘要
Abstract
This article mainly studies the effects of different solution cooling methods on the structure and mechanical properties of Ti150 alloy were studied.The Ti150 alloy sample was heat treated by different heat treatment methods,and then the temperature tensile,high temperature tensile,hardness,microstructure and high temperature creep of the sample were tested and analyzed.The results show that different solution cooling methods have obvious effects on the micro structure and mechanical properties of the material.With the decrease of the cooling rate,the strength of Ti150 alloy gradually decreases.The tensile strength of Ti150 alloy at room temperature reaches 1176MPa when it is cooled by solution water and 1027MPa when it is cooled by air.The plasticity gradually increased,and the tensile elongation at room temperature increased from 8.4％in water cooling to 14.1％in air cooling.In terms of hardness,it not only decreases with the decrease of the solution cooling rate,but also the core hardness of the sample under the same system is significantly lower than the surface hardness.Conclusion the analysis shows that Ti150 alloy has a strong solid solution strengthening effect,the slower the solid solution cooling rate,the more fully the alloying element diffusion,the primary α phase gradually grows,the secondary α phase slat thickens,the dislocation density decreases,so the strength and hardness decrease,and the creep resistance becomes worse.Conversely,the faster the solution cooling rate,the higher the strength and hardness,Therefore,in order to obtain high strength and creep resistance,water cooling should be used for solid solution.关键词
固溶/硬度,扩散/蠕变/α相Key words
solution/hardness/diffusion/creep/α phase引用本文复制引用
瞿兆银,王清,白家元,牟旭祥,刘至唯..固溶冷却方式对Ti150合金组织及性能的影响[J].金属加工（热加工）,2025,(4):40-43,47,5.
