Aiming at the problem that the low-temperature impact toughness of 1Cr13 stainless steel forgings after forging failed to meet the standard after pit cooling and quenching and tempering heat treatment,the key factors leading to the failure of low-temperature impact toughness are identified by comparing the qualified and unqualified specimens through metallographic structure observation and fracture scanning analysis. On this basis,the effects of quenching temperature and tempering temperature on the tensile strength and low-temperature impact toughness of 1Cr13 are studied after tests,and the heat treatment process is improved to significantly improve the tensile strength and low-temperature impact toughness of stainless steel forgings.
关键词
1Cr13/低温冲击韧性/影响因素/热处理/工艺研究
Key words
1Cr13/low temperature impact toughness/influencing factor/heat treatment/process study
维普
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