SYMPOSIA PAPER Published: 01 January 2002
STP10852S

Study of Evaluating Method for Non-Metallic Inclusions and Development of Slag Refining for Bearing Steel

Source

The evaluation of the nonmetallic inclusions is very important to estimate the rolling contact fatigue life of bearing steel. The study of the ultrasonic testing as nondestructive testing made it clear that the nonmetallic inclusion over 10 μm could be detected and there was a relationship between the flaking and the nonmstallic inclusions in the rolling contact fatigue life testing. On the extraction of the acid solution and Coulter counter method, the changes of the nonmetallic inclusions in molten steel was analyzed and the higher basicity less SiO2 slag refining reduced the quantity of the nonmetallic inclusions over 20 μm size to 75% compared with the conventional refining method.

Author Information

Nishikawa, T
Aichi Steel Co., Aichi-Ken, Japan
Nagayama, H
Aichi Steel Co., Aichi-Ken, Japan
Nishimon, S
Aichi Steel Co., Aichi-Ken, Japan
Asai, K
Aichi Steel Co., Aichi-Ken, Japan
Fujii, I
Aichi Steel Co., Aichi-Ken, Japan
Sugimoto, T
Aichi Steel Co., Aichi-Ken, Japan
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: A01
Pages: 148–163
DOI: 10.1520/STP10852S
ISBN-EB: 978-0-8031-5466-7
ISBN-13: 978-0-8031-2894-1