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논문 기본 정보

자료유형
학술저널
저자정보
Erfan Maleki (Sharif University of Technology-International Campus) Okan Unal (Karabuk University) Kazem Reza Kashyzadeh (Sharif University of Technology)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.25 No.6
발행연도
2019.1
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1,436 - 1,447 (12page)

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In the present study, the main purpose is to detect the most key factors of shot peening (SP) process on the microhardness,grain size, and residual stress of AISI 1060 high carbon steel. The specimens were treated using various types of SP processnamely conventional shot peening and severe shot peening. Several experiments were performed to study metallurgical andmechanical properties of AISI 1060 steel. Almen intensity and surface coverage from one side and microhardness, grainsize, and residual stress from the other side were considered as input and output parameters for the design of experimentmethodology, respectively. The L18(21 and 31) mixed level of Taguchi orthogonal array design was used to study all cases. The test results were investigated by signal-to-noise ratio formula. It was identified that the surface coverage is the most keyfactors for shot peening process considering the affected depth. Also, the effect of this parameter on the microhardness, grainsize and residual stress was obtained approximately 68, 89 and 57%, respectively. Eventually, the results obtained from allTaguchi sensitivity analysis indicated that it would be better to adjust the surface coverage factor in comparison with Almenintensity factor in order to create the surface compressive residual stress on the material and consequently to increase thefatigue lifetime of component using shot peening treatment.

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