2014
DOI: 10.1016/j.surfcoat.2014.03.019
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Effect of defocus manner on laser cladding of Fe-based alloy powder

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Cited by 50 publications
(22 citation statements)
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“…Because the laser cladding process has rapid heating and cooling rates, it can create a fine microstructure during the solidification process [12][13][14]. With the fast development of laser cladding technology, more and more attention has been paid to the repairing area and has been developed rapidly [15][16][17][18]. Lewis et al [19] used four different powders to improve the wear and rolling contact fatigue (RCF) life of rails by laser cladding.…”
Section: Introductionmentioning
confidence: 99%
“…Because the laser cladding process has rapid heating and cooling rates, it can create a fine microstructure during the solidification process [12][13][14]. With the fast development of laser cladding technology, more and more attention has been paid to the repairing area and has been developed rapidly [15][16][17][18]. Lewis et al [19] used four different powders to improve the wear and rolling contact fatigue (RCF) life of rails by laser cladding.…”
Section: Introductionmentioning
confidence: 99%
“…Because the growth of the crystal morphology during solidification mainly depends on the value of G/R [9], where 'G' means the temperature gradient of the liquid phase and 'R' is the solidification rate of solid phase, the instantaneous value of G/R changes with the distance to the solidification interface. The cladding layer is divided into three parts: bottom, middle and top, each having a different micro-morphology [24,25]. Figure 10b shows the bottom of the layer, and the input of laser energy.…”
Section: Microstructure Of Coatingmentioning
confidence: 99%
“…Laser cladding is used for a large variety of applications and materials, comprising polymers as well as alloys and ceramics for use at high temperature. Current trends of laser cladding with respect to turbine application include the manufacture of multifunctional protective coatings for the modification of surface properties, such as wear and corrosion resistance, abrasion and thermal resistance, or the repair of critical components with a laser beam [13][14][15][16]. Given high-speed cladding and the characteristics of rapid solidification processes, structures homogeneous in terms of low porosity and the absence of cracks may be obtained on the surface of work pieces [17,18].…”
Section: Introductionmentioning
confidence: 99%