摘要
奥氏体-贝氏体球墨铸铁中有20—40％的奥氏体,在滚动接触疲劳过程中,表面层奥氏体仅有5—10％发生应力诱发马氏体相变,产生于未转变的奥氏体区中,这种相变对于表面硬度的提高贡献不大,对接触疲劳性能没有明显的影响。
20-40% austenite in austenitic-bainitic ductile nodular cast iron. During roiling contact fatiguing, only 5—10% of such austenite in surface layer may transform into stress-induced martensite in untransformed austenitic areas. The transformation seems to be slightly improved surface hardness and unaffected upon contact fatigue properties of the iron.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第7期A323-A326,共4页
Acta Metallurgica Sinica
关键词
奥氏体
球墨铸铁
接触疲劳
austenite-bainite ductile iron, contact fatigue, work hardening, stress-induced martensitic transformation
