Influence of Heat Treatments and Ni Content on Properties of Martensitic Stainless Steel

被引：1
|
作者：
Camek, L. [1 ]
Kana, V [1 ]
Zadera, A. [1 ]
Myska, M. [1 ]
机构：
[1] Brno Univ Technol, Fac Mech Engn, Techn 2896 2, Brno 61669, Czech Republic
来源：
ARCHIVES OF FOUNDRY ENGINEERING | 2018年 / 18卷 / 02期
关键词：
Stainless steels; Nickel equivalent; Mechanical properties; Structure; Volume of ferrite;
D O I：
10.24425/122532
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The article deals with the influence of chemical composition of martensitic stainless steel for castings GXCrNi13-4 (the 1.4317 material) on mechanical properties and structure of as cast steel after heat treatment. Properties of these martensitic stainless steel are heavily influenced by chemical composition and structure of the material after heat treatment. Structure of these steels after quenching is formed with martensite and residual austenite. When tempering the steel the carbon content in martensite is reduced and gently deposited carbides occur. The way of heat treatment has a major impact on structure of martensitic steels with low carbon content and thus on strength, hardness and elongation to fracture of these steels. Chemical composition of the melt has been treated to the desired composition of the lower, middle and upper bounds of the nickel content in the steel within the limits allowed by the standard. Test blocks were gradually cast from the melt. The influence of the nickel equivalent value on structure and properties of the 1.4317 steel was determined from results of mechanical tests.
引用
收藏
页码：220 / 225
页数：6
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