Microstructural effects in abrasive wear. Quarter progress report, June 16--September 15, 1977
Standard procedures have been developed for low-stress abrasion testing, based on a rubber wheel test system, and for gouging abrasion testing, based on a grinding wheel test system. AISI 1020 and 4340 steels have been evaluated as test standards for both systems, and the 1020 has been found to provide best reproducibility. Low-stress testing has been conducted on 2.7C and 3.5C pearlitic, 15Cr-3Mo, 27Cr and Ni-Hard 4 white irons. Microstructural effects are evident in that the 3.5C iron has substantially greater low-stress wear resistance than the 2.7C iron. Moreover, wear resistance across FE/sub 3/C dendrites is greater than that normal to dendrites. The Ni-Hard 4 irons have retained austenite ranging from 5 to 85% volume fraction. Weight loss during wear is at a maximum for 40% retained austenite, indicating that the interrelation between carbide, martensite and retained austenite volume fraction is complex. Work is underway to quantitatively relate wear behavior to microstructure and mechanical properties such as fracture toughness.
- Research Organization:
- Notre Dame Univ., SOuth Bend, IN (USA). Coll. of Engineering
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- OSTI ID:
- 5222934
- Report Number(s):
- COO-4246-2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microstructural effects in abrasive wear. Quarterly progress report for the period 15 June 1978--15 September 1978
Microstructural effects in abrasive wear. Quarter progress report, 15 March 1977--15 June 1977
Related Subjects
360103* -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ABRASION
ALLOYS
CARBIDES
CARBON COMPOUNDS
CARBON STEELS
CAST IRON
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CRYSTAL STRUCTURE
ELEMENTS
FRACTURE PROPERTIES
IRON ALLOYS
IRON BASE ALLOYS
IRON CARBIDES
IRON COMPOUNDS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL STEELS
STEELS
TRANSITION ELEMENT COMPOUNDS
WEAR