CAJ | 학술논문

对430铸造铁素体不锈钢的脆性进行了分析,采用金相显微组织分析、力学性能测试、冲击断口宏观和SEM等技术手段探讨了430不锈钢发生脆化的原因.结果表明:430铸造铁素体不锈钢的脆性主要是由铸造过程中马氏体的生成引起的,通过700℃热处理水冷可以显著提高430铸造铁索体不锈钢的韧性,并同时改善其抗拉强度和塑性.
대430주조철소체불수강적취성진행료분석,채용금상현미조직분석、역학성능측시、충격단구굉관화SEM등기술수단탐토료430불수강발생취화적원인.결과표명:430주조철소체불수강적취성주요시유주조과정중마씨체적생성인기적,통과700℃열처리수랭가이현저제고430주조철색체불수강적인성,병동시개선기항랍강도화소성.
The brittleness of ferritic stainless steel 430 as-east was analyzed by metaUographic microscope, mechanical properties test, macroscope ffactography and SEM. The results show that the brittleness of ferritic stainless steel 430 as-cast is caused by martensite. The toughness of 430 ferritic stainless steel increases obviously through 700 ℃ heat treatment, while the tensile strength and ductility properties also improves.