The present invention relates to a steel alloy having a composition comprising: from 0.6 to 1.0 wt% carbon from 0.5 to 2.0 wt% silicon from 1.0 to 4.0 wt% chromium optionally one or more of from 0 to 0.25 wt% manganese from 0 to 0.3 wt% molybdenum from 0 to 2.0 wt% aluminium from 0 to 3.0 wt% cobalt from 0 to 0.25 wt% vanadium and the balance iron, together with unavoidable impurities. The microstructure of the steel alloy comprises bainite and, more preferably, superbainite.
申请公布号
EP2834378(B1)
申请公布日期
2016.02.24
申请号
EP20120720115
申请日期
2012.04.04
申请人
AKTIEBOLAGET SKF;CAMBRIDGE ENTERPRISE LIMITED, THE OLD SCHOOLS
发明人
SHERIF, MOHAMED;RIVERA-DIAZ-DEL-CASTILLO, PEDRO EDUARDO JOSE;BHADESHIA, HARSHAD KUMAR DHARAMSHI HANSRAJ;HUANG, HANZHENG