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

页码：147 / 153

页数：7