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Microstructure and Mechanical Properties of Braze Welded Joints of Copper with Austenitic Steel Made by CMT Method

Wojdat T., Kustroń P., Margielewska A., Stachowicz M.

Archives of Metallurgy and Materials

2019

Vol. 64, iss. 4

1411--1420

This paper outlines issues associated with gas-shielded braze welding of CU-ETP copper with austenitic steel X5CrNi18-10(1.4301) using a consumable electrode. The possibilities for producing joints of this type using innovative low-energy welding methods are discussed. The paper provides an overview of the results of metallographic and mechanical (static shear test, microhardness) tests for braze welded joints made on an automated station using the Cold Metal Transfer (CMT) method. Significant differences in the structure and mechanical properties are indicated, resulting from the joint configuration and the type of shielding gas (argon, helium).