Study The Sliding Wear Behavior Of Dual Phase Steel

Authors

  • Dr. Israa. A. Alkadir Aziz

Abstract

This research is devoted to investigating the influences of different temperatures at 750
° C, 800°C, and 850°C with different holding time 15, 30, and 45 min for each temperature
on microstructure and wear resistance of dual-phase steel. Argon atmosphere was used to
prevent oxidation or decarburization and then quench in water to transform the austenite to
martensite((M)). Thus, the shape, distribution, and volume fraction of ((M)) also affect dry
sliding wear properties. The microstructure examination by optical microscope, even using
the point counting to determine a volume fraction of" martensite. The results show that the
volume (M)fraction elevated with elevating heat and time. The wear rate determines by
using the pin–on- disc technique of dual-phase steel at different loads [ 5,10,15, and 20] N
and sliding velocities [1.4,2.8, and4.2] M/sec at constant time 30min. The wear resistance
was determined as hardness function and ((M)) amount phase. The results showed that
resistance of wear elavating with elevating the hardness and the amount of volume fraction
of "martensite."

Published

2020-10-01

Issue

Section

Articles