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

Technical Report · Sun Jun 01 04:00:00 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

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