Controlling residual stresses in 52100 bearing steel by heat treatment.

Autor: Stickels, C., Janotik, A.
Zdroj: Metallurgical transactions. Part A: Physical Metallurgy & Materials Science; 1980, Vol. 11 Issue 3, p467-473, 7p
Abstrakt: Compressive residual stresses can be induced in the surface of quenched and tempered 52100 steel (1 pct carbon, 1.5 pct chromium) by austenitizing in a carburizing atmosphere, even though the austenitizing temperature is well below that needed to dissolve all pri-mary carbides. The carburized surface layer contains a larger volume fraction of pri-mary carbides, more retained austenite and is slightly harder than the interior. Rolling contact fatigue tests show that carburizing can produce a 50 pct improvement in the fa-tigue life of 52100 steel. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index