Influence of cubic boron nitride grinding on the fatigue strengths of carbon steels and a nickel-base superalloy

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1361/105994999770346981· OSTI ID:351501

Kawagoishi, N; Chen, Q; Kondo, E ^[1]; Goto, M ^[2]; Nisitani, H ^[3]

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1. Kagoshima Univ. (Japan). Faculty of Engineering
2. Oita Univ. (Japan). Faculty of Engineering
3. Kyushu Sangyo Univ., Fukuoka (Japan). Faculty of Engineering

The influence of cubic boron nitride (CBN) grinding on fatigue strength was investigated on an annealed carbon steel, a quenched and tempered carbon steel at room temperature, and a nickel-base superalloy, Inconel 718, at room temperature and 500 C. The results were discussed from several viewpoints, including surface roughness, residual stress, and work hardening or softening due to CBN grinding. The fatigue strength increased upon CBN grinding at room temperature, primarily because of the generation of compressive residual stress in the surface region. However, in the case of Inconel 718, this marked increase in the fatigue strength tended to disappear at the elevated temperature due to the release of compressive residual stress and the decrease of crack growth resistance at an elevated temperature.

• OSTI ID: 351501
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 2 Vol. 8; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON NITRIDES
CARBON STEELS
CUBIC LATTICES
CUTTING TOOLS
FATIGUE
GRINDING
INCONEL 718
METALLURGICAL EFFECTS
RESIDUAL STRESSES
ROUGHNESS