Impact-abrasive wear resistance in steels

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Industrial Laboratory

OSTI ID:133201

Sorokin, G M; Zyablitskii, E M; Nikitina, E A ^[1]

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1. I.I. Gubkin State Oil and Gas Academy, Moscow (Russian Federation)

Wear-resistance criteria can be identified only from a detailed analysis of the surface failure mechanism and the deformation, hardening, softening, and physicomechanical properties of the material in the initial and limiting states. We have examined steels of various classes most widely used: steel 45 (pearlitic), R6M5 (carbide), 40Kh13 (martensite), and 12Kh18N10T (austenitic). The specimens were prepared as long cylinders. Before testing, they were given heat treatment: quenching and tempering at 100, 200, 300, 400, 500, 600 {degrees}C. The metal state was evaluated form the microhardness H, which was measured with a PMT-3 tester at a load of 0.5 N. The impact abrasive wear tests were performed with specialized equipment. The kinetics of W=f(H{sup O}) lead one to conclude that there is a linear relationship between the wear resistance and H{sup O} for steels of all structural classes. As the microhardness increases for 40Kh13, the wear resistance falls, whereas that for steel 45 and R6M5 increases. The {Delta}H criterion enables one to select the most wear-resistant structural state unambiguously for impact abrasive wear, since the resistance is determined by a single linear dependence for viscous and brittle forms of failure. Also, the definition of {Delta}H makes it preferable as a wear criterion. One needs only a tension tester and microhardness meter.

• OSTI ID: 133201
• Journal Information: Industrial Laboratory, Journal Name: Industrial Laboratory Journal Issue: 12 Vol. 59; ISSN 0019-8447; ISSN INDLAP
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUSTENITIC STEELS
FRACTURE PROPERTIES
HEAT TREATMENTS
MARTENSITIC STEELS
MICROHARDNESS
WEAR RESISTANCE