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이 논문의 연구 히스토리 (7)
2016
2015
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The current study elucidates the effects of cementite spheroidization and pro-eutectoid ferrite on the sliding wear resistance in medium carbon (0.45wt%C) and high carbon (1wt%C) steels. Both steels were initially heat treated to obtain a fully pearlite or ferrite + pearlite microstructure. Spheroidizing heat treatments were performed on both steels to spheroidize the pearlitic cementite. Sliding wear tests were conducted using a pin-on-disk wear tester with the steel specimens as the disk and an alumina (Al₂O₃) ball as the pin. The sliding wear tests were carried out at room temperature in air with humidity of 40±2 %. Adapted sliding distance and applied load was 300m and 100N, respectively. Sliding speed was 0.1m/s and the wear-track radius was 9 mm. Worn surfaces and cross-sections of the wear track were examined using an SEM. Micro Vickers hardness of the wear-track subsurface was measured as a function of depth from the worn surface. Hardness and sliding-wear resistance of both steel decreased with increased spheroidization of the cementite. The decrease was more significant in the fully pearlitic steel (1wt%C steel). The steel with the pro-eutectoid ferrite showed relatively higher wear resistance compared to the spheroidized pearlitic steel.
목차
Abstract
1. 서론
2. 실험 방법
3. 결과 및 고찰
4. 결론
REFERENCES
참고문헌 (10)
참고문헌 신청
S. kumar / 2011 / Dry Sliding Wear Behavior of Medium Carbon Steel Against an Alumina Disk / Wear 270(5):413~421
A. Kamyabi-Gol / 2010 / Spheroidizing Kinetics and Optimization of Heat Treatment Parameters in CK60 Steel Using Taguchi Robust Design / J. Iron. Steel Res. Int. 17(4):45~52
K.-H. Zum Gahr / 1987 / Microstructure and Wear of Materials / Elsevier :351~353
Y. Wang / 1999 / Tribo-metallographic Behavior of High Carbon Steels in Dry Sliding II. Microstructure and Wear / Wear 231(1):12~19
A. Saha / 2010 / Effect of Cyclic Heat Treatment on Microstructure and Mechanical Properties of 0.6 wt% Carbon Steel / Mater. Sci. Eng. A 527(16):4001~4007
A. Kamyabi-Gol / 2010 / Spheroidizing Kinetics and Optimization of Heat Treatment Parameters in CK60 Steel Using Taguchi Robust Design / J. Iron. Steel Res. Int. 17(4):45~52
K.-H. Zum Gahr / 1987 / Microstructure and Wear of Materials / Elsevier :351~353
Y. Wang / 1999 / Tribo-metallographic Behavior of High Carbon Steels in Dry Sliding II. Microstructure and Wear / Wear 231(1):12~19
A. Saha / 2010 / Effect of Cyclic Heat Treatment on Microstructure and Mechanical Properties of 0.6 wt% Carbon Steel / Mater. Sci. Eng. A 527(16):4001~4007
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UCI(KEPA) : I410-ECN-0101-2015-550-002728856