research papers on jis sk3

CHARACTERIZATION OF LASER-PEENED MATERIALS BY

steel (JIS SK3) rod was drilled to make tube-shaped samples of 150mm long with 17mm outer and 9.5mm inner diameters. The wall thickness is 3.75mm. The middle part Of 50mm long was laser-peened as shown in Fig.3, under the condition of 70mJ pulse energy, 0.7mm spot diameter 100pulses/mm- irradiation density and 3800% coverage.

Effect of Microstructure of Cementite on Interphase Stress

Jul 01, 2007 · The experimental results are in good agreement with the theoretical relationships reported in the previous studies. 1 Experimental Procedure 1. 1 Material and specimen Carbon steels JIS SK5 and SK3 were used in the experiment. The chemical composition was (mass percent, % ) C 0. 83(1. Statistical Analysis of X ray Residual Stress Measurement Residual stresses in the three hardened steels, JIS S35C, S45C, and SK3, were determined by three methods, that is, the parabola and the Gaussian curve-fitting methods and the half-width method. The stress values determined by the three methods agreed well with each other.

X-ray elastic constant determination and residual stress

After special surface treatments on specimens, residual stress behaviors of ferrite and cementite phases in two kind sizes of spheroidized JIS SK3 steels after tensile deformation were estimated X-Ray Elastic Constant Determination And Residual Stress May 28, 2006 · After special surface treatments on specimens, residual stress behaviors of ferrite and cementite phases in two kind sizes of spheroidized JIS SK3 steels after tensile deformation were estimated by X-ray diffraction method. In the study, phase cementite X-ray elastic constant was obtained from composite X-ray elastic constants; compressive residual stresses were observed in ferrite and

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