Abstract:The phase transformation mode, Cu precipitation behavior during isothermal process and their influences on mechanical properties have been comparatively studied in Cu‐free and Cu‐bearing steels. Cu is found to promote massive transformation and shear transformation, and its precipitation occurs during isothermal process. Significant improvements of yield strength by 250 MPa and tensile strength by 290 MPa have been obtained by adding 2.0 wt% Cu at a slight expense of ductility and low temperature toughness. Ca… Show more
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