Ti-6554钛合金的TTT曲线测定  

Determination of TTT curve of Ti-6554 titanium alloy

作　　者：李成林[1] 于洋[1] 惠松骁[1] 付艳艳[1] 

机构地区：[1]北京有色金属研究院有色金属材料制备加工国家重点实验室,北京100088

出　　处：《中国有色金属学报》2010年第B10期560-564,共5页The Chinese Journal of Nonferrous Metals

摘　　要：采用金相法测定了Ti-6554钛合金的TTT曲线。结果表明:测得等温转变的"鼻温"在540℃左右,在此温度时效时,α相析出速度最快,仅需5 min。另外,该合金的时效响应快,在480～600℃时效时,α相从亚稳β相中析出的开始时间均少于30 min。Metallographic method was used for the determination of TTT curve of Ti-6554 titanium alloy. The results show that the ＇nose＇ temperature of isothermal transformation is about 540 ℃. When the alloy is aged at 540℃, a phase precipitates fastest, and only 5 min is needed. Moreover, this alloy has fast aging response. When the alloy is aged at 480-600 ℃, the beginning time of a phase precipitated from metastable fl phase is less than 30 min.

关 键 词：钛合金 金相法 TTT曲线 

分 类 号：TG146.2[一般工业技术—材料科学与工程]