Effect of machining residual stresses on the repetitive impact behavior of silicon nitride
Journal Article
·
· Journal of Materials Research; (United States)
- Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6063 (United States)
- Caterpillar Technical Center, Mossville, Illinois 61552 (United States)
Silicon nitride is a candidate valve material for internal combustion engines. Its low density and attractive mechanical properties relative to conventional metallic alloys portend significant improvements in valve performance. The production of valves involves a significant amount of machining, especially grinding. Grinding of ceramic materials may result in surface and subsurface damage in the form of fracture or residual stresses which may affect impact behavior, and consequently, the behavior of silicon nitride ceramic materials as valves. The effects of residual stresses due to grinding on the impact wear behavior of one silicon nitride composition ground under various conditions has been investigated.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6622123
- Journal Information:
- Journal of Materials Research; (United States), Journal Name: Journal of Materials Research; (United States) Vol. 10:1; ISSN JMREEE; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
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