Effect of precipitation strengthening in low alloyed Mn-Ni cast steels

被引：11
作者：
Glownia, J. [1 ]
Kalandyk, B. [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Foundry Engn, Dept Steel Foundry Engn, Krakow, Poland
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2008年 / 207卷 / 1-3期
关键词：
microalloyed cast steels; high strength; vanadium microaddition; carbonitride precipitation;
D O I：
10.1016/j.jmatprotec.2007.12.097
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of modification and heat treatment on the properties of low alloyed C-Mn 1.4-V cast steels has been investigated. A new type of cast steel with a yield strength above 850 MPa and elongation higher than 8% obtained in stepped samples with 20-75 mm wall thickness by microalloying, optimal tempering and control of ferrite volume in the matrix has been developed. Yield strength and toughness were controlled by the precipitation of carbonitrides; in substantially ferritic microstructure. The morphology of these precipitates was controlled by the cooling rate during crystallization of the alloy (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：147 / 153
页数：7
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