中国重型装备
中國重型裝備
중국중형장비
CHINA HEAVY EQUIPMENT
2013年
1期
42-44
,共3页
奥氏体%热稳定化%淬火冷却
奧氏體%熱穩定化%淬火冷卻
오씨체%열은정화%쉬화냉각
austenite%heat stabilization%quenching cooling
通过化学成分分析、金相检验、显微硬度测试等方法,对ASTM 4145H钢中频调质开裂原因进行分析.结果表明:开裂是由于奥氏体化时的热稳定化现象导致,在随后的奥氏体向马氏体转变时产生的应力没有及时释放而形成.
通過化學成分分析、金相檢驗、顯微硬度測試等方法,對ASTM 4145H鋼中頻調質開裂原因進行分析.結果錶明:開裂是由于奧氏體化時的熱穩定化現象導緻,在隨後的奧氏體嚮馬氏體轉變時產生的應力沒有及時釋放而形成.
통과화학성분분석、금상검험、현미경도측시등방법,대ASTM 4145H강중빈조질개렬원인진행분석.결과표명:개렬시유우오씨체화시적열은정화현상도치,재수후적오씨체향마씨체전변시산생적응력몰유급시석방이형성.
@@@@By methods of chemical composition analysis , metallographic test and microhardness test , cause of ASTM 4145H steel crack after medium frequency quenching and tempering has been analyzed .The result showed that heat stabilization of austenising leaded to the cracks , and they subsequently were formed as stress was not release in time when austenite was transited into martensite .
