ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Boronizing independent of the phase composition of the boride layer and subsequent heat treatment leads to an increase in steel resistance to abrasive wear by not less than a factor of two. 2. The wear resistance of a two-phase boride layer (FeB+Fe2B) is approximately 1.25 times greater than the wear resistance of a single-phase boride layer (Fe2B) with tests on specimens cooled after boronizing in air. The wear resistance of borides FeB and Fe2B is similar; the greatest wear resistance is exhibited by a layer consisting mainly of boride Fe2B and containing 20–40% FeB inclusions. 3. Heat treatment used in order to strengthen the layer beneath the boride has practically no effect on the wear resistance of single-phase boride layers, and it has a marked effect on the wear resistance of two-phase layers; with water quenching it is reduced, and with isothermal hardening it is increased. The wear resistance of a two-phase boride layer is 1.4 times lower and 1.5 greater than the wear resistance of a single-phase boride layer after water quenching specimens and isothermal hardening, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00703870
