钛/铝/钛层状复合材料的爆炸复合制备及后续热压处理研究

Explosive cladding and hot pressing of Ti/Al/Ti laminates

摘要:

本文以纯钛板与纯铝板为原料,通过爆炸复合法制备钛/铝/钛层状复合材料,之后采用热处理以及热压工艺对钛/铝/钛层状复合材料进行进一步处理。研究结果表明：复合板界面主要由波状界面和平直状界面构成,铝元素与钛元素在界面上发生了互扩散,界面结合性能优良,可以承受后续较大的二次塑性变形；热处理后的复合板界面发生明显扩散,在热处理25 h后热压2.5 h后铝层完全反应,扩散反应层主要由TiAl₃相以及Ti₂Al₅相构成。

Abstract:

Ti/Al/Ti laminates were prepared by explosive cladding method. Then hot pressing was employed to further process the laminates. The results indicated that both linear and wavy bonding interfaces coexisted and element diffusion occurred in the interfacial zone between the titanium and aluminum layers after explosive cladding. After 25 h heat treatment and 2.5 h hot pressing, the aluminum layer was consumed completely. The reaction layer consisted of Al₃Ti and Ti₂Al₅ phase.