Joining of SUS316L and SUS430L Stainless Steel Parts with the Paste Containing Stainless Steel Powder in MIM Process

摘要

The combinations of the same stainless steels (SUS316L/SUS316L, SUS430L/SUS430L) and the different stainless steels (SUS316L/SUS430L) were joined with the pastes containing the stainless steel powder in MIM process. For joining the same stainless steels, the values of joined strength were 400 MPa for SUS316L/SUS316L compact sintered at 1623K, and 320 MPa for SUS430L/SUS430L compact sintered at 1373K respectively. For joining the different stainless steels, the values of joined strength for SUS316L/SUS430L compacts sintered at 1623 K were 330 MPa by using the paste with SUS316L, and 370 MPa by using the paste with SUS430L. At the joined area of SUS316L/SUS430L sintered compacts, the mixed layer (over 100 mum thickness) of ferrite and martensite phases was observed.