[P] P231~P243 Materials Processing

[P240] Dissimilar joining of 42 Invar and commercial Mg alloys via dealloying

○Kota Kurabayashi¹, Takeshi Wada², Hidemi Kato² (1. Graduate School of Engineering, Tohoku University, 2. Institute for Material Research, Tohoku University)

Keywords:

Dissimilar joining,Immiscible,Dealloying,Iron,Magnesium

Dissimilar joining of 42 Invar and commercial Mg alloys via dealloying was evaluated. Bicontinuous composite layer formed at the interface, while brittle phases formed via a secondary reaction between Ni and solutes in Mg alloys. The joint using ZK60, where this formation was minimized, achieved a maximum strength of 175 MPa.