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Abstract:
The influence of the austempering process on microstructure evolution, mechanical properties, wear resistance, and corrosion resistance of Cu-bearing carbidic austempered ductile iron (CADI) was investigated. The results show that with an increase in the austempering temperature, the amount of acicular ferrite decreases, the volume fraction and carbon content of retained austenite increase gradually, the hardness and tensile strength decrease, and the impact toughness and corrosion resistance increase. Wear tests show that as the austempering temperature increases, the wear resistance of Cu-bearing CADI is improved and decreases when the temperature exceeds 300 degrees C. Comparing to the conventional single-step austempering process, two-step austempering process (namely added pre-quenching at 260 degrees C) significantly improves the wear resistance of Cu-bearing CADI by more than 16% without compromising toughness.
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JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN: 1059-9495
Year: 2020
Issue: 4
Volume: 29
Page: 2440-2459
2 . 3 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:169
Cited Count:
WoS CC Cited Count: 7
SCOPUS Cited Count: 7
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2