Effect of heat treatment conditions and densities on residual stresses at hybrid (FLN2-4405) P/M steels

被引：3

作者：

Kafkas, Firat ^{[1
]}

Karatas, Cetin ^{[1
]}

Saritas, Seyman ^{[2
]}

机构：

[1] Gazi Univ, Fac Technol, Dept Mech Technol, TR-06500 Ankara, Turkey

[2] UCCET Econ & Technol Univ, Fac Engn, TR-06560 Ankara, Turkey

来源：

PROGRESS IN POWDER METALLURGY, PTS 1 AND 2 | 2007年 / 534-536卷

关键词：

residual stresses; P/M Steels; post sintering; layer removal technique; electrochemical machining;

D O I：

10.4028/www.scientific.net/MSF.534-536.669

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The characteristics of residual stresses occurring in PM steel based nickel (FLN2-4405) was investigated. Residual stresses were measured by electrochemical layer removal technique. The values and distributions of residual stresses occurring in PM steel processed under various densities (6.8, 7.05, 7.2 and 7.4 g/cm(3)) and heat treatment conditions (sintered at 2050 degrees F, sintered at 2300 degrees F, quenching-tempered, and sinter-hardened) were determined. In most of the experiments, tensile residual stresses were recorded on the surface of the samples. The residual stress distribution on the surface of the PM steels was found to be affected by the heat treatment conditions and density. The maximum values of residual stresses on the surface showed sinter hardened condition and a density of 7.4 g/cm(3). The minimum level of recorded tensile residual stresses are 150 MPa and its maximum level is 370 MPa.

引用

页码：669 / +

页数：2