Influence of Super Carburization on the Roller Pitting Fatigue Life of 0.16C-0.60Si-2.00Cr-0.34Mo Steel
- 1. Seahbesteel Co. Ltd, Gunsan (Korea, Republic of)
- 2. Dongwoo Heat Treating Co., Ltd, Dangjin (Korea, Republic of)
- 3. Chonbuk National University, Jeonju (Korea, Republic of)
Description
In this study, a super carburizing treatment was applied to improve roller pitting fatigue life. It produced excellent properties of surface hardness and temper softening resistance by forming precipitation of fine and spherodized carbides on a tempered marstensite matrix through the repeated process of carburization and diffusion after high temperature carburizing step 1. The cycle II performed two times carburizing/diffusion cycle (process) after super carburization at 1,000°C had fine and spherodized carbides to subsurface 200 um. In this case, the carbide was (Fe,Cr)3C and there was not any massive carbides. In the case of Cycle II, the roller pitting fatigue life had a 6.15 million cycles. It was improved 48% compared to normal gas carburizing treatment.
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Institute of Metals and Materials
- Journal Volume
- 50
- Journal Issue
- 7
- Series
- 14 refs, 8 figs, 1 tab
- Journal Page Range
- p. 517-522
- ISSN
- 1738-8228
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 48081884
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CARBIDES; CARBURIZATION; FATIGUE; HARDNESS; PITTING CORROSION; PRECIPITATION; SURFACES
- Descriptors DEC
- CARBON COMPOUNDS; CHEMICAL REACTIONS; CORROSION; HARDENING; MECHANICAL PROPERTIES; SEPARATION PROCESSES; SURFACE HARDENING; SURFACE TREATMENTS