Effects of carbide-forming elements on the response to thermal treatment of the X45Cr13 martensitic stainless steel

被引:23
作者
De Andrés, CG
Alvarez, LF
López, V
Jiménez, JA
机构
[1] CSIC, Ctr Nacl Invest Metalurg, Dept Met Phys, Madrid 28040, Spain
[2] Max Planck Inst Eisenforsch GmbH, Dept Mat Technol, D-40237 Dusseldorf, Germany
关键词
Polymer; Carbide; Stainless Steel; Heat Treatment; Austenite;
D O I
10.1023/A:1004424329556
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of carbide-forming elements on the response to thermal treatment of the X45Cr13 martensitic stainless steel have been investigated. Heat treatments consisted of austenitizing for 60 s at temperatures ranging from 1000-1250 degrees C. The higher is the solution treatment temperature, the less M23C6 carbide is left out of solution in the austenite. As a result, the concentration of carbon and alloying elements in the martensite increases and, therefore, an increase in the hardness until a maximum value of 710 HV was found at austenitizing temperatures of 1120 and 1130 degrees C for the steels X45Cr13 and X45CrMoV14, respectively. At higher austenitizing temperatures, the presence of retained austenite was observed, which leads to a lowering of the hardness value. The higher amount of carbide-forming elements in the X45CrMoV14 determines an increase in retained austenite from 3 vol % to about 30 vol %. Thus, a drop in the hardness value from 710 to 680 and 585 for the steels X45Cr13 and X45CrMoV14, respectively, was found. (C) 1998 Kluwer Academic Publishers.
引用
收藏
页码:4095 / 4100
页数:6
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