双重退火对TC21钛合金高温变形后组织的影响Effect of duplex annealing on microstructure of TC21 alloy after high temperature deformation
徐海林,董洪波,朱深亮,王志录,江斌
摘要(Abstract):
研究了双重退火以及变形工艺对TC21钛合金组织的影响。结果表明,TC21合金在准β区变形后,在两相区一次退火,随退火温度升高,显微组织中等轴α相增加,针状α相减少;随第二次退火温度升高,二次析出的α相形核率低,二次α相粗大。在同一应变速率下,在两相区随着变形温度升高,双重退火后等轴状初生α相减少,针状次生α相增多;当变形温度到达β相区时,退火后组织为网篮组织。
关键词(KeyWords): TC21合金;高温变形;双重退火;组织
基金项目(Foundation): 国家自然科学基金资助项目(51164029);; 江西省自然科学基金项目(20114BAB206017)
作者(Author): 徐海林,董洪波,朱深亮,王志录,江斌
DOI: 10.13289/j.issn.1009-6264.2014.07.012
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