ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Addition to steel of small amounts of an Al−Ba−Ca master alloy does not cause pyro-effects, improves considerably the technological properties of steel 12Kh11V2NMF-L, increases the impact toughness, gives a higher strength level in the initial condition and reduces the softening rate in service. 2. Small additions of such a master alloy result in more uniform properties across the casting section, apparently due to improved structural homogeneity; this reduces the effect of size on the properties. 3. A steel cast with a small addition of the above master alloy shows the following hot strength properties on specimens cut from a 1.3 ton casting after a “soft” heat treatment: σ600°(105hrs) = 10 kg/mm2; σ610°(105hrs) = 9 kg/sq. mm and σ610°(10−5%/hrs) = 5.8 kg/sq. mm.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00715780
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