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Laser surface alloying of research progress and application of the laser surface alloying is a new surface modification method has broad application prospects. In this paper, laser surface alloying of the status quo, including the laser surface alloying process and technology to develop the basic principles of classification, alloy Coating properties and performance. Introduced the study of material types and methods, international focus and the latest research results and theoretical analysis, and briefly describes the laser surface alloying in practical engineering applications and the specific research prospects. This kind of    green laser pointer   has the higher expense.
This article also points out the existence of laser alloying of current research issues to be resolved and future direction for improvement. Text: Laser surface alloying is a change in both the physical state of the surface, has changed its chemical composition of laser surface treatment technology. It is the use of high-energy laser beam to the substrate metal surface melting, while adding alloying elements in the matrix as the solvent, alloying elements for the solute based on the formation of a layer of concentration is very high and very uniform alloy layer, so that the base metal surface with the required wear resistance, corrosion resistance, high temperature anti-oxidation and other special properties. The carton of    50mW blue violet laser pointer   is of the black color.
Laser surface alloying can in some cheap, not superior surface properties on the surface of the substrate material system resistant to wear, corrosion, high temperature oxidation of the surface alloy layer, the overall alloy to replace expensive, saving precious and strategic metals materials, so that low-cost substrate materials are widely used, so that production costs have fallen significantly. Compared with conventional heat treatment, laser surface alloying can make it difficult to close the area and local alloying, rapid processing in the process of effective use of energy, deep-focus laser irregular parts available in the uniform alloy of depth. The package information of    200mW green Laser Pointer   should be described in the details.
But also has a small deformation of the workpiece, cooling speed, high efficiency, low consumption of alloying elements, no quenching medium, clean pollution-free, and easy to implement automation, etc., with good prospects for development. The present. Laser surface alloying research is not limited to low-carbon steel, stainless steel, cast iron, but also to the titanium, aluminum and other nonferrous metals [1,2]. Laser surface alloying of the basic principles and process categories. Laser surface alloying of the basic principles of the laser is a high strength, good direction, and good monochromatic coherent light. Small divergence angle of laser and color is good, in theory, can be focused to a size similar to the wavelength of light (micron level) on a small spot, with its own strength. The technical theory of    100mW green laser pointer     is very important to the production of    green laser pointer      .
It can make the power density at the focal point 105 ~ 1013 W/cm2. Temperature up to 10 000 ° C or more. In such a high temperature. Any materials instantaneous rapid melting and vaporization, and high explosive ejected, while producing highly directional impact. Therefore, the laser processing of the workpiece under the effect of light and heat generated in high-temperature melting and thrown by the shock wave integrated process. Laser alloying (1aser Surface Alloying, LSA) is a partial modification of metal surface, a new approach. In the high-energy laser beam irradiation. The quality recognition of    green laser pointer      should be done step by step. 
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