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论文类型：会议论文

发表时间：2008-01-01

收录刊物：EI、CPCI-S、SCIE

卷号：373-374

页面范围：318-321

关键字：high nitrogen face-centered-cubic phase; stacking faults; X-ray diffraction; peak shift; peak asymmetry; austenitic stainless steel; plasma source ion nitriding

摘要：Effects of stacking faults in a high nitrogen face-centered-cubic phase (gamma(N)) formed on plasma source ion nitrided 1Cr18Ni9Ti (18-8 type) austenitic stainless steel on peak shift and peak asymmetry of x-ray diffraction were investigated based on Warren's theory and Wagner's method, respectively. The peak shift from peak. position of the gamma(N) phase is ascribed to the deformation faults density a, while the peak asymmetry of the gamma(N) phase is characterized by deviation of the center of gravity of a peak from the peak maximum (Delta C.G.) due to the twin faults density P. The calculated peak positions of x-ray diffraction patterns are consistent with that measured for plasma source ion nitrided 1Cr18Ni9Ti stainless steel.