ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
The Effect of Austenitizing Process on the Hardening Behaviour of Cr-Mo-Mn-C Air-hardening Cast Tool Steel
C. WuV. SahajwallaP. Krauklis
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1996 Volume 36 Issue 3 Pages 347-353


The hardening behaviour of Cr-Mo-Mn-C air-hardening cast tool steel was investigated by using an electron microprobe analyser (EPMA), a transmission electron microscope (TEM), an energy dispersive X-ray diffraction spectrometer (EDS), as well as scanning electron microscope (SEM). The results obtained in the present investigation show a significantly different behaviour in the Cr-Mo-Mn-C air-hardening cast tool steel. It is concluded that the performance of (Fe, Cr)3C dissolution and (Cr, Fe)7C3 reprecipitation during austenitizing is a key factor controlling the hardening behaviour as well as ultimate hardness obtained in air cooling.

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© The Iron and Steel Institute of Japan
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