Laser deposited TiC/H13 tool steel composite coatings and their erosion resistance

Microstructure and Properties of Laser-Deposited Ti6Al4V Metal Matrix Composites Using Ni-Coated Powder

“…Comparing the morphology and dimensions of the TiC originally introduced in the powder mixture with those of TiC particles in the deposited composites shows that TiC particles undergo considerable melting during LENS processing. The phenomenon of TiC particle melting during exposure to a laser beam has also been noted by other investigators, [24,29] and rationalized by the fact that TiC particles have a much higher capability to absorb laser energy than that of metals. In fact, the ceramics absorb energy better than metals only at both ends of the spectrum of wavelength: 0.1 to 10 lm, such as for a CO 2 laser with a wavelength of 10.6 lm, but worse than metals in the case of a Nd:YAG laser, [30,31] whose wavelength is 1.064 lm.…”

An experimentally based thermo-kinetic hardening model for high power direct diode laser cladding

“…It has a huge potential of high volume usefulness for repairing the valued components and tools. The chemical composition of AISI 4140 (Jiang and Kovacevic, 2007) and H13 are summarized in Table 1. The tool steel H13 chemical composition is given by the manufacturer, Carpenter Powder Products Inc., PA.…”

“…Ouyang et al (2002) built a FSW tool using the FGM matrix of WC/H13, and the authors experimentally showed that the obtained FGM provided good wear-resistant at an elevated temperature. Jiang and Kovacevic (2007) studied the effect of laser scanning speed on the variation of microstructure of FGM (TiC/H13) to determine an optimal composite proportion of TiC with respect to H13 in order to achieve the desired hardness and erosion resistance. investigated the effect of vibration on the mitigation of defects such as a lack of fusion or unmeleted particles present in the interface zone and the formation of gas porosity during the LPD process.…”

Microstructure, Wear, and Corrosion Characteristics of TiC-Laser Surface Cladding on Low-Carbon Steel

“…[19] Considerable research studies have been carried out in the field of surface engineering with CO 2 [20,21] and Nd:YAG lasers. [22,23] Different procedures have been developed for the application of laser energy to obtain hard coatings on metallic surfaces. The aim of the work reported in the current paper is to produce a hard layer on mild steel through formation of TiC-reinforced composite coating using Fiber YAG laser system.…”