余宸旭,肖来荣,赵雷,蔡圳阳,王彦红

• 1:中南大学材料科学与工程学院

摘要(Abstract)：

研究了Nb-Ti-Al高温合金的静态再结晶行为及晶粒长大行为,并通过实验得出了再结晶动力学和晶粒长大方程。结果表明:冷轧变形后,合金在880～1000℃进行退火处理,可获得均匀、细小的晶粒,再结晶晶粒体积分数与退火时间的关系可用Avrami方程进行描述。随着冷轧变形量的增加,再结晶激活能逐渐减小,其范围为274.05～198.45 kJ/mol。在850～1000℃的温度范围内,研究了加热温度和时间对合金晶粒尺寸变化的影响。

关键词(KeyWords)： Nb-Ti-Al;再结晶动力学;再结晶激活能;晶粒长大

Abstract:

Keywords:

基金项目(Foundation): 国家“十一五”科技支撑计划项目(2009BAE71B00)

作者(Author): 余宸旭,肖来荣,赵雷,蔡圳阳,王彦红

DOI: 10.13289/j.issn.1009-6264.2012.s2.009

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