TB6钛合金β相区加热下晶粒生长行为
发布时间：2018-10-29 19:20
【摘要】：研究了TB6合金β相区加热过程中的β晶粒生长规律,计算了β晶粒生长激活能,并建立了β晶粒生长相关模型。结果表明:β晶粒尺寸随保温时间增加,先快速增加,后缓慢增加;随加热温度升高,β晶粒尺寸先缓慢增加,加热温度超过940℃时,β晶粒尺寸快速增加;β晶粒尺寸与保温时间存在幂函数关系,与加热温度存在指数关系。计算了合金β相区晶粒生长激活能为92.77 k J/mol,并建立了β晶粒生长模型,模型计算值与实验数据的平均误差为8.9%。
[Abstract]:The 尾 -grain growth in TB6 alloy during 尾 -phase heating was studied, the activation energy of 尾 -grain growth was calculated, and the correlation model of 尾 -grain growth was established. The results show that the 尾 grain size increases rapidly first and then slowly with the increase of holding time, and slowly increases with the increase of heating temperature, and increases rapidly when the heating temperature exceeds 940 鈩，
本文编号：2298572
[Abstract]:The 尾 -grain growth in TB6 alloy during 尾 -phase heating was studied, the activation energy of 尾 -grain growth was calculated, and the correlation model of 尾 -grain growth was established. The results show that the 尾 grain size increases rapidly first and then slowly with the increase of holding time, and slowly increases with the increase of heating temperature, and increases rapidly when the heating temperature exceeds 940 鈩，
本文编号：2298572
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