CAJ | 학술논문

对TC11/TC17异种钛合金线性摩擦焊飞边和接头的组织进行了分析。研究结果表明，焊接飞边组织不是2种钛合金的混合组织而是由TC11钛合金、过渡区和TC17钛合金组成。而线性摩擦焊接头由TC11母材、TC11侧热力影响区、焊合区、TC17侧热力影响区、TC17母材组成，两侧热力影响区组织沿着飞边挤出方向被拉长，而两侧焊合均发生动态再结晶，并在焊合线处形成了共生晶粒。
대TC11/TC17이충태합금선성마찰한비변화접두적조직진행료분석。연구결과표명，한접비변조직불시2충태합금적혼합조직이시유TC11태합금、과도구화TC17태합금조성。이선성마찰한접두유TC11모재、TC11측열력영향구、한합구、TC17측열력영향구、TC17모재조성，량측열력영향구조직연착비변제출방향피랍장，이량측한합균발생동태재결정，병재한합선처형성료공생정립。
[ABSTRACT] TC11 and TC17 titanium are usually used in the aero-engine blisk. TC11 and TC17 are con-nected by LFW, and the microstructure of its welding lfash and joint is investigated in the paper. The results show that the lfash is composed of TC11, intermixture of TC11 and TC17, TC17 rather than is only mixed by TC11 and TC17. The joint is divided into TC11 base metal, TC11 thermal mechanical affected zone (TMAZ), welding zone, TC17 TMAZ and TC17 base metal. The phases and grain in the TMAZ are elongated along the direction of friction. Dy-namic recrystallization happens in the welding zone and common grains are formed in the interface.