改进型BT25y钛合金热处理工艺对棒材组织和性能的影响  

Effect of Heat Treatment Process on the Structure and Properties for Reformative BT25y Titanium Alloy Bars

作　　者：杨慧丽[1] 魏寿庸[1] 何书林[1] 羊玉兰[1] 王永梅[1] 陶海林[1] 

机构地区：[1]宝鸡钛业股份有限公司,陕西宝鸡721014

出　　处：《稀有金属快报》2007年第7期39-41,共3页Rare Metals Letters

摘　　要：对改进型BT25y钛合金棒材固溶、时效热处理与力学性能的关系进行了研究。结果表明,改进型BT25y钛合金强化热处理的固溶温度为900～945℃,时效温度为530～550℃,在该工艺范围内处理,可获得均匀α+β等轴组织,且组织性能匹配较好,各项拉伸性能指标均达到或超过工程应用的技术要求。The relationship between ageing process and properties for reformative BT25y titanium alloy bars was researched in this paper. The results show that when the solution temperature of intensification heat treatment was 900-945 ℃ , and ageing 530-550 ℃, the equal-axed structures with α＋β grain for reformative BT25y Ti alloy bar will be obtained. In this cases the structure can be a good match for properties, and all the tensile indexes can meet the specification.

关 键 词：BT25Y钛合金 热处理工艺 组织 性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]