Method for joining metallic members, joint structure and brazing filler metal

Abstract

In joining an Fe-based metallic member comprising an Fe-based material and an Al-based metallic member comprising an Al-based material by a Zn-based brazing filler metal, a joined part of the Fe-based metallic member is heated at a temperature higher than a melting point of the Fe-based material.

1 . A joined structure of metal members, comprising:
 a Fe-based metallic member containing a Fe-based material and an Al-based metallic member containing an Al-based material, joined with a brazing filler metal consisting of Zn, Si and unavoidable impurities interposed therebetween.   
     
     
         2 . The joined structure of metal members according to  claim 1 , wherein the brazing filler metal contains 0.25 to 2.5% by weight of Si, and the remainder being Zn and unavoidable impurities.