Browse > Article
http://dx.doi.org/10.21289/KSIC.2021.24.4.435

Effect of Ni and Mo Addition on Fatique Property in 12Cr Steel  

Lee, Jin-Kyung (Division of Mechanical, Automobile, Robot Component Engineering, Dongeui University)
Bae, Dong-Su (Division of Advanced Materials Engineering, Dongeui University)
Publication Information
Journal of the Korean Society of Industry Convergence / v.24, no.4_2, 2021 , pp. 435-441 More about this Journal
Abstract
This research was performed to study the effect of the Ni + Mo addition on the fatigue properties in 12Cr steel. After heat treatment of 12Cr steel and 12Cr-Ni-Mo steel, tensile tests, impact tests, hardness tests, and rotary bending fatigue tests were performed, respectively. The fatigue fracture surface was observed and analyzed using SEM and EDS. The fatigue limit of 12Cr steel was 554 MPa, which was 49 MPa higher than 505 MPa of 12Cr-Ni-Mo steel. Striations, which are the shape of the typical fatigue fracture surface, were observed at the fracture surface near the starting point of fatigue fracture in the 12Cr steel and 12Cr-Ni-Mo steel. However, unlike the case of 12Cr steel, 12Cr-Ni-Mo steel also had a mixed fracture surface with the fatigue and the ductile fracture surface. When brittle non-metallic inclusions exist near the starting point of fatigue failure, the crack propagation was further promoted and the fatigue life was drastically reduced.
Keywords
12Cr Steel; Fatigue Property; Mechanical Property; Ni and Mo Addition; SEM;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ASM Databook, Metal Progress, Vol. 116, (1979).
2 손인수, 한국산업융합학회 논문집, 24, 2, 183, (2021).   DOI
3 Metals Handbook, Vol. 10, 8th Ed., American Society for Metals, Metals Park, Ohio, (1975).
4 Trantina G. G., J. Test Eval., 9, 44-49, (1981).   DOI
5 Cameron T. B., Diesburg D. E., and Kim C., J. Metals, 7, 37-41, (1983).
6 Hammond R. A. R. and Williams C., Metall. Rev., 5, 165-223, (1960).   DOI
7 Turnbull A., Crocker L., and Zhou S., Intern. J. Fatigue, 116, 439-447, (2018).   DOI
8 The Making, Shaping, and Treating of Steel, 9th Ed., United States Steel Co., pp. 1178, (1971).
9 Vogt J.-B., Bouquerel J., Carle C., and Serre I. P., Intern. J. Fatigue, 130, 105265, (2020).   DOI
10 Sun L., Bao X.-G., Guo S.-J., Wang R.-Z., Zhang X.-C., Tu S.-T., Intern. J. Fatigue, 147, 106187, (2021).   DOI
11 Chauhan A., Litvinov D., Aktaa J., Intern. J. Fatigue, 93, 1-17, (2016).   DOI
12 Abe F., Engineering, 1(2), 211-224, (2015).   DOI
13 Rietema C.J., Hassan M.M., Anderoglu O., Eftink B.P., Saleh T.A., Maloy S.A., Clarke A.J., and Clarke K.D., Scripta Materialia, 197, 113787, (2021).   DOI
14 Suresh S., Fatigue of Materials, 2nd Ed., Cambridge Univ. Press, (1998).
15 Isothermal Transformation Diagrams, United States Steel Co., pp. 48, (1963).