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首页> 外文会议>International Conference on Solidification and Gravity; 20040906-09; Miskolc-Lillafured(HU) >Investigation of Phenomena Taking Place in LASER Surface Alloying Steels of WC-Co
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Investigation of Phenomena Taking Place in LASER Surface Alloying Steels of WC-Co

机译：WC-Co激光表面合金钢中发生现象的研究

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摘要

The laser surface-treatment methods have been quickly developed by appearing of lasers with high power beam and can increase the hardness, of the surface. A very hard, wear-resisting layer can be produced by the dispersing of ceramic grains. The essence of the technology is, that such a material (compound-phase, e.g.: metal-oxide, carbide, nitride, etc.) is added to the surface layer melted by laser, which does not solve or solves only partly in the metal-melt. This work studies the effect of the different technological parameter (such as, power of the laser-beam, motion speed, amount of the ceramic particles etc.) on the different microstructure accrued during the laser surface alloying.rnThe desired microstructure has homogeneous carbide distribution in the matrix. But it is embarrassed by several conditions. The aim of this present work is to find out the reasons for the inhomogeneous ceramic particle distribution inside the matrix and to discover these embarrassing conditions.
机译：激光表面处理方法已经通过出现具有高功率光束的激光器而迅速发展，并且可以增加表面的硬度。通过分散陶瓷颗粒可以产生非常坚硬的耐磨层。该技术的实质是将这种材料（化合物相，例如：金属氧化物，碳化物，氮化物等）添加到通过激光熔化的表面层中，这不能溶解或仅部分溶解在金属中-熔化。这项工作研究了不同技术参数（例如激光束的功率，运动速度，陶瓷颗粒的数量等）对在激光表面合金化过程中产生的不同显微组织的影响。rn所需的显微组织具有均匀的碳化物分布在矩阵中。但这使某些情况感到尴尬。这项工作的目的是找出基质内部陶瓷颗粒分布不均匀的原因，并发现这些令人尴尬的情况。

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