Microstructure and Properties of a Non-Quenched Prehardened Steel at Different Cooling Rate
2012 ◽
Vol 524-527
◽
pp. 1976-1979
Keyword(s):
Mechanical properties of non-quenched prehardened (NQP) steel air cooled and sand cooled after forged were tested and their microstructure was investigated by optical microscopy and transmission electronic microscopy(TEM). The results show that mechanical properties of the NQP steel are similar at both cooling conditions, and their microstructure is bainite, whose fine structure is main bainite ferrite laths, retained austenite films, retained austenite islands and their transformation products. Bainite ferrite laths of the NQP steel air cooled are narrower than that sand cooled, while more retained austenite islands exist in latter.
2014 ◽
Vol 941-944
◽
pp. 314-317
2007 ◽
Vol 534-536
◽
pp. 757-760
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Keyword(s):
1983 ◽
Vol 41
◽
pp. 220-221
Keyword(s):
2011 ◽
Vol 189-193
◽
pp. 3891-3894