Accession Number : AD0683965

Title :   EFFECT OF HARDENING METHODS ON THE ABRASION WEAR RESISTANCE OF IRON ALLOYS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Ivantsov,G. I. ; Shchulepnikova,A. G.

Report Date : 15 NOV 1968

Pagination or Media Count : 11

Abstract : Hardness and wear tests were made to determine the effect of hardening by quenching and tempering, alloying, precipitation hardening, carbides, and increasing the carbon content, on the wear resistance of various steels, and to relate it to Vickers hardness (Hv). The wear tests were made in wet Fe ore. The wear resistance of steels hardened to Hv of 500 kg/mm2 by quenching and tempering, precipitation hardening, and alloying was increased by a factor of 1.5; the wear resistance of steels hardened to 500, but contg. excess carbides in martensite was increased 6-fold, and with carbides in austenite 13-fold. Hardening due to excess phases (carbides) with strong interat. bonds produces high wear resistance; hardening by dispersion, block refining, coherent lattice distortions in supersatd. solid solns., and lattice distortions increase the wear resistance only to a moderate extent. (Author)

Descriptors :   (*STEEL, *HARDENING), (*IRON ALLOYS, *WEAR RESISTANCE), MICROSTRUCTURE, PHASE STUDIES, HEAT TREATMENT, USSR

Subject Categories : Properties of Metals and Alloys
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE