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다국어 초록 (Multilingual Abstract)

Based on 42CrMo steel, a steel with a higher C and Ni content is developed for use in large sized bearing rings. The impact energy and hardness of the quenched and tempered steel increase with the quenching temperature, but then decrease when the temperature is above 925 °C. When the temperature is below 925 °C, some larger M23C6-type carbides (with average diameters of 255.6 μm) exist in the quenched and tempered microstructure. The number of carbides is reduced as the quenching temperature increases. At the same time, the fracture modes change from microvoid coalescence and quasi-cleavage to microvoid coalescence. The number of round quasi-cleavage fractures, which are formed around the carbides, decrease as the number of carbides decrease. The existence of larger M23C6-type carbides leads to round quasi-cleavage fractures and decrease the impact energy. The precipitation strengthening of M23C6-type carbides increases the hardness at a quenching temperature of 925 °C.

참고문헌 (Reference)

1 B. Jiang, 27 : 383-, 2014

2 A. W. Bowen, 1 : 1695-, 1970

3 Y. H. Yang, 608 : 164-, 2014

4 S. Krishna, 86 : 51-, 2015

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8 D. Zou, 17 : 50-, 2010

9 S. Mayer, 80 : 89-, 2009

10 G. Y. Lai, 5 : 1663-, 1974

1 B. Jiang, 27 : 383-, 2014

2 A. W. Bowen, 1 : 1695-, 1970

3 Y. H. Yang, 608 : 164-, 2014

4 S. Krishna, 86 : 51-, 2015

5 P. Yan, 597 : 148-, 2014

6 S. K. Dhua, 318 : 197-, 2001

7 B. Z. Lou, 15 : 498-, 1979

8 D. Zou, 17 : 50-, 2010

9 S. Mayer, 80 : 89-, 2009

10 G. Y. Lai, 5 : 1663-, 1974

11 M. F. Carlson, 10 : 1273-, 1979

12 J. D. Chen, 48 : 1186-, 2012

13 M. H. K. Sanij, 42 : 339-, 2012

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21 T. Hao, 596 : 244-, 2014

22 L. Rancel, 530 : 21-, 2011

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24 Q. L. Yong, "Second Phases in Structural Steels" Metallurgical Industry Press 21-22, 2006

25 X. S. Jiang, "Quick Reference for Microscopic Fracture of Steel" Machinery Industry Press 45-50, 2010

26 B. C. De Cooman, "Fundamentals of Steel Product Physical Metallurgy" Warrendale 183-184, 2012

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학술지 이력

학술지 이력
연월일	이력구분	이력상세
2023	평가예정	해외DB학술지평가 신청대상 (해외등재 학술지 평가)
2020-01-01	평가	등재학술지 유지 (해외등재 학술지 평가)
2009-12-29	학회명변경	한글명 : 대한금속ㆍ재료학회 -> 대한금속·재료학회
2008-01-01	평가	SCI 등재 (등재유지)
2005-01-01	평가	등재학술지 선정 (등재후보2차)
2004-01-01	평가	등재후보 1차 PASS (등재후보1차)
2002-01-01	평가	등재후보학술지 선정 (신규평가)