High strength steels (HSS) used in highly abrasive environments, such as in mining and crushing,
must endure high stress abrasion. To properly understand the wear behavior of materials under such
circumstances, the connection between surface loading, work hardening, and material removal has first
to be determined. In this study, wear resistant steels with initial hardness ranging from 400 to 750 HV
were investigated in single-grit abrasion. In the cyclic abrasion experiments, the abrasion resistance of
the steels was improved noticeably from the initial state due to surface hardening. However, the highest
surface hardening rate did not result in the highest wear resistance. Moreover, when the surface loading
was sufficiently increased, the transition to a high wear rate mechanism was observed.
High strength steels (HSS) used in highly abrasive environments, such as in mining and crushing,must endure high stress abrasion. To properly understand the wear behavior of materials under suchcircumstances, the connection between surface loading, work hardening, and material removal has firstto be determined. In this study, wear resistant steels with initial hardness ranging from 400 to 750 HVwere investigated in single-grit abrasion. In the cyclic abrasion experiments, the abrasion resistance ofthe steels was improved noticeably from the initial state due to surface hardening. However, the highestsurface hardening rate did not result in the highest wear resistance. Moreover, when the surface loadingwas sufficiently increased, the transition to a high wear rate mechanism was observed.
การแปล กรุณารอสักครู่..
