Microstructural effects in abrasive wear. Quarterly progress report, January 1-June 1, 1980

Technical Report · Sun Jun 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/5316267· OSTI ID:5316267

Fiore, N. F.; Kosel, T. H.; Channagiri, M.; Desai, V.; Fulcher, J.; Shetty, H. R.

Research aimed at establishing quantitative relationships between microstructure and wear resistance of highly alloyed materials is described including high-Cr white irons and experimental Co-base and Ni-base powder metallurgy (PM) alloys now used or potentially to be used in coal mining, handling and gasification. The specific types of wear under study are low-stress abrasion and gouging wear encountered in mining, coal conversion and transfer applications. Research has concentrated on the investigation of wear in Co-base PM alloys No. 19 and No. 6, which have been sintered to provide different carbide sizes at the same volume fraction in each respective alloy. Low-stress abrasion tests using Al/sub 2/O/sub 3/ abrasive have been completed on Alloy No. 19 and the results show a monotonic decrease in wear rate with increasing size. A series of single-point scratch test simulations of abrasive wear mechanisms has been initiated, and these tests provide valuable insights into material removal processes in the Co-base alloys.

• Research Organization: Notre Dame Univ., IN (USA). Dept. of Metallurgical Engineering and Materials Science
• DOE Contract Number: AS02-77ET10460
• OSTI ID: 5316267
• Report Number(s): COO-4246-12/13
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
01 COAL, LIGNITE, AND PEAT
CHROMIUM ALLOYS
MICROSTRUCTURE
WEAR RESISTANCE
COBALT BASE ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
TUNGSTEN ALLOYS
ABRASIVES
ALUMINIUM OXIDES
CARBIDES
COAL GASIFICATION
COAL MINING
GRAIN SIZE
SINTERING
ALLOYS
ALUMINIUM COMPOUNDS
CARBON COMPOUNDS
CHALCOGENIDES
COBALT ALLOYS
CRYSTAL STRUCTURE
FABRICATION
GASIFICATION
MECHANICAL PROPERTIES
MINING
OXIDES
OXYGEN COMPOUNDS
SIZE
THERMOCHEMICAL PROCESSES
360103* - Metals & Alloys- Mechanical Properties
010404 - Coal
Lignite
& Peat- Gasification
012000 - Coal
Lignite
& Peat- Mining