涂銘旌1， 于維成2，姚 戈2
(1. 四川大學(xué) 金屬材料系, 成都 610065;
2. 中國(guó)科學(xué)院 金屬研究所, 沈陽(yáng) 110016)
摘 要: 研究了不同熱處理狀態(tài)的ZL107合金在300℃的高溫靜態(tài)蠕變和循環(huán)蠕變的行為。結(jié)果發(fā)現(xiàn)：峰時(shí)效下，合金的蠕變抗力強(qiáng)于過(guò)時(shí)效狀態(tài)下材料的蠕變抗力。循環(huán)蠕變時(shí)材料表現(xiàn)出蠕變減速現(xiàn)象。經(jīng)峰時(shí)效處理的ZL107合金在循環(huán)蠕變中表現(xiàn)出較靜態(tài)蠕變低的激活能，用非熱空位機(jī)制進(jìn)行了解釋，而經(jīng)過(guò)時(shí)效處理的ZL107合金表現(xiàn)出高的激活能，滯彈性機(jī)制起了重要作用。
關(guān)鍵字: ZL107合金； 熱處理； 蠕變
GAO Sheng-ji1, LI Da1, TU Ming-jin1,
YU Wei-cheng2, YAO Ge2
（1. Department of Metal Materials, Sichuan University,
Chengdu 610065, P.R.China;
2. The Institute of Metal Research, Chinese Academy of Science,
Shenyang 110016, P.R.China）
Abstract: The elevated temperature static and cyclic creep behavior of ZL107 alloy by different heating treatments at 300℃ were investigated. The results indicate that on the condition of peak aging，the materials show higher resistant to creep than those overaged materials do. During cyclic creep，ZL107 alloy shows cyclic creep retardation in the tested stress range. On the condition of peak aging, ZL107 alloy shows lower apparent activation energy in cyclic creep in comparison with that in static creep and an analysis based on a thermal vacany is introduced to explain result on the condition of over-aging. ZL107 alloy shows higher apparent energy, anelastic recovery plays a more important role.
Key words: ZL107 alloy； heating treatment； creep
