The B4C ceramic particle not melted in cladding layer.
熔覆层中出现未熔的B4C陶瓷颗粒。
Compared with the substrate, hardness of the cladding layer improves significantly.
与被强化基体相比，熔覆层的硬度得到显著提高。
The preparation of ternary boride hard alloy cladding layer on steel substrate is studied.
研究采用铸渗法制备三元硼化物硬质合金覆层钢基材料。
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。
Then, for surface cladding layer, advances in the plasma and electro-chemistry methods are reviewed.
表面敷层方面介绍了铸造铝合金的等离子喷涂、电化学方法的研究现状；
Therefore, we could realize the effect of strain field reducing to different lattices cladding layer.
因此我们可以了解由不同晶格常数的夹层形成之应力场的影响。
It is shown that there are different solidification parameters for different position in cladding layer.
结果表明：熔覆层不同位置的凝固特征参数不同。
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 influences of the process parameters on microstructure and properties of the cladding layer were discussed.
探讨了工艺参数对熔覆层组织、性能的影响。
Along the cladding direction, plastic tension strain appears which is the main cause of cladding layer cracking.
熔覆层材料沿熔覆方向发生的塑性拉伸变形，是造成熔覆层开裂的主要原因。
The analysis results also show that enhancing preheating temperature is an effective way to avoid cladding layer cracking.
提高基体预热温度可有效避免熔覆层开裂。
The Al-free grating surface permits the re-growth of a high-quality cladding layer that yields excellent device performance.
由于采用无铝光栅，保证了二次外延质量，从而得到较好的器件性能。
The effects of cavitation erosion resistance, abra - sion resistance and corrosion resistance of the cladding layer are reviewed.
并对激光熔覆层结构及性能作了较详细的介绍，阐述了熔覆层的抗空蚀性、耐磨蚀性和耐腐蚀性等。
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。
The method has the advantages of colored cladding layer which does not reflect light and increased corrosion resistant capability.
本发明的有益效果：具有不反光的有色镀层，耐腐蚀能力增加。
The stress distribution of cladding layer can be ameliorate with preheating before cladding and thermal retardation after cladding.
熔覆件整体的熔前预热和熔后保温，可以改善熔覆层的应力分布。
The post treatment can improve deformation and surface stress state, refine microstructure and increase hardness of cladding layer.
后热处理可改善变形和表面应力状态、细化组织、提高硬度。
The features and microstructure of the cladding layer and interface layer between cladding layer and copper substrate were analyzed.
对熔覆层和熔覆层与基体结合区的形貌和微观组织进行了研究。
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 results show that the cladding layer has compact and flawless microstructure and has been metallurgically integrated with pure copper substrate.
结果表明：所制得熔覆层组织致密、无裂纹，与基体形成了良好的冶金结合。
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。
Launch scratch test indicate under most big load function of 100n, cladding layer combine substrate well, there are no stripping and avalanche phenomenon.
声发射划痕试验表明，在最大载荷100n的作用下，熔覆层与基体结合良好，没有剥离和崩落现象。
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。
The analysis results show that, by the end of process the cladding layer is in tension stress state whereas the stress values are varied in different direction.
分析结果表明，熔覆结束后熔覆层处于拉应力状态，但各个方向拉应力的大小不同。
The technology of acquiring precise modified layer on construction material surface by light beam cladding was investigated and its effect on cladding layer quality was revealed.
研究了采用聚焦光束熔覆方法在结构材料表面获得精密改性层的工艺及其对熔覆层质量的影响。
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。
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。
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