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Vol.41, No.4, 209 ~ 215, 2003
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| Title |
| Wear Characteristic of Wear Resistant Steels Fabricated by Hot Forging Followed by Air-cooling |
| 최병영 Byung Young Choi , 김익수 Ick Soo Kim , 장병록 Byong Rok Chang , 이용희 Yong Hee Lee |
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| Abstract |
| Wear of blades, buckets, plates and chisel occurred in operation of construction machinery, agricultural equipments, earthmoving equipments and offshore structures cause earlier failure of the components, resulting in the increased energy consumption, cost of maintenance and replacement. To solve the problems, advanced materials with higher resistance to abrasive wear have been attempted to make through alloy design and hot deformation followed by air cooling. 0.25C-1.4Mn-1.0Cr-0.7Ni-0.2Mo-0.08V-0.02Cu steels produced by hot forging were cooled in air to form bainite, showing higher resistance to wear than any other steels with different chemical composition in the sliding wear tests under the applied load of 74N. Higher strain hardening during sliding wear of 0.25C-1.4Mn-1.0Cr-0.7Ni-0.2Mo-0.08V-0.02Cu steels to cause microploughing wear mode seems to be one of the main reasons for showing higher resistance to wear than any other steels in this study. |
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| Key Words |
| Alloys design, Bainite, Wear, Strain hardening, Hot forging, Air cooling microploughing wear mode, Higher resistance to wear |
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