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http://dx.doi.org/10.3795/KSME-A.2015.39.6.597

Effect of Nitriding on Fatigue Characteristics of Cr-Mo Alloy Steel  

Oh, Kwang Keun (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Kim, Jae Hoon (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Choi, Hoon Seok (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.6, 2015 , pp. 597-602 More about this Journal
Abstract
CrMo alloy steel was nitrided using two types of processing methods, ion-nitriding processing and nitrocarburizing. Both processes were conducted for a duration of 30 min. To compare the surface hardness of the alloys created by the different processes, microhardness tests were conducted, and fatigue tests of each material were performed by a cantilever rotary bending fatigue test machine (Yamamoto, YRB 200) in the very high cycle regime ($N>10^7cycle$). Fractography of the fractured surfaces was conducted by scanning electron microscopy - to observe the fracture mechanisms of very high cycle fatigue and the effect of the nitriding process on the fatigue characteristics.
Keywords
Fatigue Life; Initial Crack; Nitriding Processing; SEM; Very High Cycle Fatigue;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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