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

稀有金属材料与工程, 2017, 46(5): 1192-1196.

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

郭训忠 ^1, , 范敏郁 ^2, , 刘忠利 ^3, , 马福业 ^4, , 王刘安 ^5, , 陶杰 ^6,

1.南京航空航天大学,江苏南京,211106

2.南京航空航天大学,江苏南京,211106

3.南京航空航天大学,江苏南京,211106

4.南京航空航天大学,江苏南京,211106

5.南京航空航天大学,江苏南京,211106

6.南京航空航天大学,江苏南京,211106

基金项目: the Priority Academic Program Development of Jiangsu Higher Education Institutions National Natural Science Foundation of China(51205196,51475231) China Postdoctoral Science Foundation(2013M531347) the Doctoral Foundation of Ministry of Education of China(20123218120029) the Project Innovation of Jiangsu Province of China(BA2012124)

关键词：钛/铝/钛层状复合材料 , 爆炸复合 , 界面 , 热压处理

Explosive Cladding and Hot Pressing of Ti/Al/Ti Laminates

Keywords： Ti/Al/Ti laminate , explosive cladding , bonding interface , hot pressing

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.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的铝层完全反应,扩散反应层主要由TiAl3相以及Ti2Al5相构成.

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

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