Why does the 304 stainless steel wire produce magnetism when it is stretched?
The fundamental cause of magnetism:1: the austenite microstructure is partly transformed into martensite;2: in the process of stretching, resulting in dislocation, resulting in residual stress
As a result of the above reasons, the amount of magnetism is large and small with the amount of deformationThe best and most thorough way to eliminate or reduce the magnetism is to anneal!