2018年2月15日 · The variations of XRD full width at half maximum (FWHM), residual stress and hardness for the surface of GCr15 steel after triple shot peening (TSP) as a function of annealing time and temperature are studied.

2018年12月19日 · The XRD patterns confirm that tempered GCr15 bearing steel microstructure contained martensites (Ferrite and C 0.12 Fe 1.88), a small amount of retained austenites (CFe 15.1), carbides M 7 C 3 (Cr 7 C 3 and Fe 7 C 3) and M 3 C (Fe 3 C).

2022年12月1日 · WC-Co reinforced GCr15 was prepared via SLM, and properties were significantly enhanced. A metallurgical bonding interface was found between WC-Co and GCr15. Two special microstructures were found, the nail-shaped and cellular microstructure.

2024年8月23日 · Figure 5 shows the XRD pattern of GCr15′s initial surface and its ECM surface (including black and bright parts). It can be seen that the diffraction peak was mainly formed by α-Fe, indicating that GCr15 was almost composed of polycrystalline ferrite and that the main crystal structures were unchanged after ECM.

2014年11月1日 · Experiments were conducted to investigate the effects of different shot peening (SP) techniques on the residual stress and micro-structure of GCr15 steel by X-ray diffraction (XRD) profile analysis.

2023年2月27日 · In this paper, ultrasonic surface rolling processing (USRP) was used to strengthen GCr15-bearing steel. A finite element three-dimensional model of USRP was established to analyze the residual compressive stress and equivalent plastic strain distribution on the bearing steel surface.

摘要 研究了GCr15钢经过三次喷丸强化处理后的XRD半峰宽 (FWHM)、残余应力和硬度随退火时间和温度的变化规律。 结果表明，随着退火温度和时间的增加，硬度和半高宽逐渐增大，而残余压应力（CRS）逐渐减小。 CRS 和显微组织共同作用于硬度值，而显微组织是影响硬度的最重要因素。 建立硬度与FWHM、CRS的定量关系，即可计算出硬度值；XRD方法可以实现一种新型的非接触式无损硬度检测。

2023年3月1日 · The microstructure and mechanical properties of high carbon chromium bearing steel (GCr15) modified by RE elements were studied by XRD, EBSD, Vickers hardness test, tensile tests, compressive tests, Charpy impact tests, and the rotating bending fatigue test.

2024年8月28日 · The results show that after LSP the severe plastic deformation (SPD) occurs in the GCr15 bearing steel and the depth of SPD layer rises with the increase of impact numbers. When the impact number is 6 times, the grain is refined to nanometer level with the size of …

In this study, TiN-MCxprecipitations in GCr15 bearing steels were obtained by non-aqueous electrolysis, and their precipitation mechanisms were studied. TiN is the effective heterogeneous nucle...