共被期刊论文引用了2次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 基于修正的Arrhennius方程钛合金高温本构方程研究显示文摘为了更准确地描述钛合金的高温变形行为,对Arrhennius方程进行修正得到钛合金高温本构方程.通过对一种新型钛合金在热模拟试验机上进行恒应变速率等温压缩实验,研究其在700~1 000℃、应变速率0.01~10 s-1条件下的热变形行为,分析了材料的真实应力-真实应变曲线.采用最小二乘拟合的数据回归处理,得到该钛合金在α+β双相区和β单相区的热变形激活能,并通过引入温度变量,获得了Arrhennius方程参数A随温度变化的函数关系,建立了该材料的高温流变应力本构方程.实验结果表明,随着变形增加,流变应力开始急剧增加,随后出现软化并趋于稳态,同时峰值应力对于温度和应变速率具有很强的敏感性.通过在Arrhenius方程中引入温度变量,有利于提高本构方程的准确性. | 刘俊雄 吴向东 万敏 李志燕 | 2015 | 材料科学与工艺2015，23，3： | 6 |
| 2 | Microstructure evolution of a new near-β titanium alloy:Ti555211 during high-temperature deformation显示文摘The isothermal compression testing of Ti555211 titanium alloys was carried out at deformation temperatures from 750 to 950 ℃ in 50 ℃ intervals,with strain rate of 0.001-1.000 s^(-1) and height reduction of 20%-60%.The effect of processing parameters(deformation temperature,strain rate and deformation degree) on the microstructure evolution and the microstructure variables was investigated.The results show that the content of primary α phase decreases with the increase in deformation temperature.The effect of strain rate on microstructure variables of isothermally compressed Ti555211 alloy is mainly dependent on the deformation temperature.The fine second α phase partly transforms to β phase due to the deformation heat effect at the high strain rate,α phase becomes globular with temperature increasing and strain rate decreasing.In contrast,α phase is refined with temperature decreasing and strain rate increasing.The deformation degree has a little influence on the grain size and the morphology of primary α phase,but the effect of deformation degree on the morphology of second α phase is significant.The larger deformation degree is in favor of the globularization of lamellar α structure. | Zhen An Jin-Shan Li Yong Feng | 2015 | Rare Metals2015，34，11： | 5 |
您所在的机构暂未开通此部分的功能，请联系管理员