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Актуальные проблемы в машиностроении. 2016. №3
Материаловедение
в машиностроении
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THE USE OF RESIDUAL AUSTENITE TO INCREASE THE ABRASIVE WEAR
RESISTANCE HIGH-CHROMIUM STEELS
FilippovM.A.
1
,
D.Sc.(Engineering), Professor
Gervasyev M.A.
1
,
D.Sc.(Engineering), Professor
Nikiforova S.M.
1
,
Post-graduate Student, e-mail:
s.m.nikiforova@urfu.ruKhadyev M.S.
1
,
D.Sc.(Engineering), Professor
RyzhkovM.A.
1
,
Ph.D. (Engineering), Associate Professor
Zhilin A.S.
1
,
Ph.D. (Engineering), Associate Professor
Estemirova S.H.
2
,
Ph.D. (Engineering), Senior Researcher
1
Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira st.,
Ekaterinburg, 620002, Russian Federation
2
Institute of Metallurgy, Ural Branch of Russian Academy of Sciences, 101 Amundsen st.,
Yekaterinburg, 620016, Russian Federation
Abstract
Influence of different type heat treatment including high temperature quenching on wear
resistance and was investigated. Analysis of the residual austenite contents influence on wear
resistance was also made. It was determined that residual austenite formed after high temperature
quenching (1100-1170°С) was metastable and had tendency to transform into carbon containing
martensite of deformation. This allowed steels to have maximum wear resistance because of
providing high abilities to friction hardening of the work place of the sample. It investigated the
effect of tempering temperature on the phase composition and structure. It was determined the
optimum regime of thermal processing of steel. This regime (high temperature quenching 1100-
1170°С) provides high wear resistance and structural strength.
Keywords
residual austenite, metastable austenite, wear resistance, quenching, martensite of deformation,
martensitic transformation, steel