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采用自制的高温拉伸机研究了Ti-33Al—3Cr—0.5Mo合金双态组织的高温变形。结果表明,在适当的变形工艺条件下,在970℃获得了高达194%的延性。研究认为,品界和晶内位借运动作为重要的协调机制,促进了晶界滑动的顺利进行。热变形中的微观缺陷易产生于γ相晶粒与α2/γ为层片晶团构成的晶界处。
The high temperature deformation of Ti-33Al-3Cr-0.5Mo alloy was studied by self-made high-temperature drawing machine. The results show that ductility up to 194% is obtained at 970 ° C under appropriate deformation process conditions. The study shows that the product sector and the intracrystalline bit borrow movement as an important coordination mechanism to promote the smooth progress of the grain boundary sliding. The microscopic defects in the thermal deformation easily occur at the grain boundaries formed by γ grains and α2 / γ grains.