2015年9月25日 · This microhardness increase is microstructurally attributed to the formation of the UIT induced work-hardened near-surface layer which covers the transformation hardened layer caused by LSH. The XRD analysis was carried out after LSH, UIT and LSH + UIT processes, which showed essential α-Fe line broadening connected to the formation of ...

2021年4月17日 · The XRD patterns of LSH-ferulate materials (Figure 1 and Figure 2) show characteristic diffraction peaks of the Zn-NO 3-LSH matrix, which indicate the formation of LSH materials. However, basal reflections of LSH-ferulate materials are shifted to smaller angles when compared with those of the host matrix.

2007年5月1日 · This study concerns laser surface hardening (LSH) of austempered SAE 52100 steel to enhance hardness and wear resistance. Following LSH with selected laser parameters, surface microstructure and mechanical properties were evaluated by optical/scanning electron microscopy, X-ray diffraction, hardness measurement and wear studies, and thermal ...

2024年8月15日 · X-ray Diffraction (XRD) is used to determine the crystalline structure and phase composition. XRD is used to detect phase transformations induced by LSH, which can significantly alter the material’s properties. For example, it can reveal the formation of martensite, a hard phase, in steel after laser hardening . XRD can provide information ...

Organic–inorganic hybrid materials were prepared by intercalation of iron 5,10,15,20 tetrakis (4-sulfonatophenyl)porphyrin complex into layered double hydroxides (ZnCr-FeTSPP LDH) and layered...

2024年5月15日 · The X-ray diffraction (XRD) results (Fig. S6) demonstrate that the diffraction peaks of the control SQDs and LSH-SQDs are almost identical in position and intensity, corresponding to a cubic crystal structure.

In the XRD patterns of Zn-fel(4)-LSH/U10, Zn-fel(4)-LSH/U20, and Zn-fel(4)-LSH/U30 materials (Figure 2), it is observed the emergence of basal reflections associated to a new LSH phase...

2019年11月1日 · Laser surface hardening (LSH) is well known process in automotive industries. The various components require high hardness, low wear resistance, high elasticity and toughness [1, 2], since they are normally used in poor working environment. The high abrasion and wear enhance the friction which leads to premature failure.

Some pH responsive polymeric matrix of Linseed (Linum usitatissimum), L. hydrogel (LSH) was prepared by free radical polymerization using potassium persulfate (KPS) as an initiator, N,N-methylene...

2023年1月30日 · A pH-sensitive polysaccharide matrix of linseed (Linum usitatissimum), L. hydrogel (LSH) was fabricated using free radical polymerization with the use of potassium persulfate (KPS) as an initiator, N,N’-methylenebisacrylamide (MBA) as a cross-linking agent, and methacrylic acid (MAA) and acrylic acid (AA) as monomers in order to ensure ...