Some suggestions of resolving the problem of cracking in laser cladding layer were propounded.
对解决熔覆层开裂问题提出了一些建议。
The cracks in the laser cladding layer are the main obstacle of the laser cladding technology application.
熔覆层中的裂纹是激光熔覆技术应用的主要障碍。
In this paper, the internal and external quality of laser cladding layer had been investigated systematically.
本文对激光涂复层外面及内部质量进行了系统的研究。
The grain refinement and formation of intermetallic play an important role for improving the performance in the laser cladding layer.
激光熔覆层中的晶粒细化和金属间化合物的形成对性能的提高起到重要作用。
This paper primarily discusses the feature of residual thermal stress on the interface between ceramic particle and matrix of laser cladding layer.
研究了激光涂覆时因陶瓷颗粒与金属之间物理性能差异而在其界面处形成的残余应力特征。
The morphology of laser cladding layer was observed by SEM, composition analysis was applied by EDS, and the phase transformation was characterized by XRD.
对激光熔覆层用扫描电境（SEM）进行形貌观察，并进行能谱成分分析，用XRD进行合金物相的表征。
That method was used for calculating the residual stress of laser cladding layer of the hermetic surface of valves. There is good agreement between our results and the others quoted from literature.
对气门密封面激光熔覆钴基合金层的计算结果显示，显微压入硬度法得到的残余应力分布数据与其它方法测得的激光熔覆层残余应力分布数据具有相同的变化趋势。
Metal matrix composite layer reinforced in situ ZrC particles was formed by laser cladding overlapping on the medium carbon steel.
采用激光熔覆搭接技术，在中碳钢基体上制备出原位析出的颗粒增强金属基复合材料表层。
This paper deals with the technique of laser cladding on contact surface of gears, micro hardness distribution, microstructure and properties of cladding and transition layer.
研究齿轮齿面激光熔覆粉末合金的工艺、显微硬度分布、熔覆层及过渡层等的金相组织及性能。
In this article the laser cladding technology is outlined, and the effect of laser cladding parameters on the quality of cladding layer is introduced.
本文概述了激光熔覆技术，介绍了激光熔覆工艺参数对熔覆层质量的影响。
It is found that cracks of cladding layer is one of the main defects in the laser cladding of thick layer on the sealing surface of high parameter valve.
在高参数阀门零件密封面上进行厚覆层激光熔覆时，发现覆层裂纹是主要的质量缺陷。
The results are that the structure and properties of cladding layer are determined by the laser surface cladding processing parameter and quality of the cladding before laser heating.
认为在低碳钢表面涂覆硬质合金的涂层组织性能取决于激光涂覆工艺与预涂层的质量。
With the effect of spraying transitional layer, a stainless steel alloy layer was obtained on the magnesium based metal matrix composites by laser cladding.
利用中间过渡层的作用，在镁基金属复合材料上激光熔覆了不锈钢合金层，熔覆层与基体为冶金结合。
The relative theoretical and technological problems in the research field of laser cladding ceramic layer in recent years were summarized in this paper.
对近年来激光熔覆陶瓷涂层技术中的有关传热和界面特性等理论问题及与之相应的工艺方面的研究进行了归纳总结。
The results showed that there were two kinds of defects, porosity and ill bonding in the laser multi-layer cladding.
结果发现，成形件内部存在两种类型的缺陷，即气孔和熔合不良。
The influence of the crystal orientation of the substrate on microstructure is investigated by multi layer laser cladding with the powder of nickel base superalloy.
采用镍基合金粉，研究了激光多层涂覆过程中基材晶体取向对涂层凝固组织的影响规律。
The Characteristics of laser cladding on modulated cast iron, the crack and performances of cladding layer have been investigated.
对球墨铸铁激光涂敷特点、涂层裂纹倾向及其对涂层性能的影响等进行了研究。
EDS spectrum analysis found that the process of laser cladding elements occurred in the proliferation of cladding layer and the substrate to achieve a good metallurgical bonding.
EDS能谱分析发现在激光熔覆的过程中发生了元素扩散，熔覆层与基体实现了良好的冶金结合。
Recent developments and applications of laser surface modification, i. e. laser surface melting, laser surface alloying, laser cladding and laser multi-layer cladding were reviewed in detail.
综述了激光表面改性(激光表面重熔、激光表面合金化、激光表面熔敷、激光多层熔敷)的研究与应用。
The invention relates to a slab laser cladding compound alloy layer heater which comprises a furnace body, a rolling screen orbit and a thermal insulation rolling screen cover plate.
平板激光熔覆复合合金层面加热器，包括炉体、卷帘轨道、保温卷帘盖板；
The results show that the repair in the finished product of Mg based alloys is feasible by multi layer laser cladding.
结果表明，使用激光多层涂敷的办法修复镁合金成品件是可行的。
The experimental results show that the microstructure is larger with increase of repetition width and layer of laser cladding;
结果表明：随着搭接宽度和层数的增加，显微组织变大；
There is much less cracks in laser cladding-remelting layer after remelting process.
经重熔处理后，熔覆层表面的裂纹显著减少；
The coatings with varied thickness and crack-free can be obtained by multi-layer laser cladding, which will have practical significance for repairing workpieces.
多层熔覆试验能形成厚度可调的无裂纹熔覆层，对生产工件的修复具有实际意义。
The coatings with varied thickness and crack-free can be obtained by multi-layer laser cladding, which will have practical significance for repairing workpieces.
多层熔覆试验能形成厚度可调的无裂纹熔覆层，对生产工件的修复具有实际意义。
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