Investigation of two-body abrasive wear

Conference · Sat Apr 01 00:00:00 EST 1978

OSTI ID:6665021

Hirano, H H; Levy, A V

An investigation of two-body abrasive wear utilizing a pin specimen on a rotating SiC particle abrasive paper test device is described. The test materials were 7075 aluminum and 4340 steel which were thermally treated to attain a range of hardness, fracture toughness and yield strength values. Wear resistance is seen to correlate directly with hardness and yield strength for both materials. For the 4340 steel the wear resistance is inversely proportional to the fracture toughness; for the 7075 aluminum, the inverse proportionality is dependent upon the microstructure. The effect of an increase in hardness by heat treatment of an alloy is much less pronounced than when the wear resistance of pure metals of differing hardness is compared. Scanning electron microscopy of abraded surfaces was used to examine the removal mechanisms involved in abrasive wear. The meaning of the observed mechanisms in terms of a model are assessed.

• Research Organization: Sandia Labs., Livermore, CA (USA); California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6665021
• Report Number(s): LBL-7328; CONF-780666-2
• Resource Relation: Conference: Conference on fundamentals of tribology, Cambridge, MA, USA, 19 Jun 1978
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ABRASION
WEAR RESISTANCE
STAINLESS STEELS
FRACTURE PROPERTIES
HARDNESS
HEAT TREATMENTS
SILICON CARBIDES
YIELD STRENGTH
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
SILICON COMPOUNDS
STEELS
360103* - Metals & Alloys- Mechanical Properties