随扫描速率的增大，熔凝层变薄；
The remelted layer becomes thin with the scanning rate increase.
基体与熔凝层之间存在梯度扩散层。
A gradient diffusion layer exists between the layer and the matrix.
激光熔凝和熔敷在热轧辊强化中的应用。
表面熔凝区的硬度较基体提高了20%。
The hardness of surface remelting zone increases by 20% compared with the substrate.
利用激光熔凝硬化技术对灰口铸铁表面进行了硬化处理。
Gray cast iron was treated by means of laser melt hardening technology.
进行了激光熔凝实验和激光熔覆过程微距连续拍摄实验。
The relative comparative experimental research on laser remelting and cladding were carried out.
采用高能量密度电子束进行了钛镀镍合金表面熔凝处理的研究。
High energy density electron beam is employed in surface rapid solidification on Ni plated ti alloy.
在真空条件下对AZ91 H P镁合金进行了激光熔凝处理。
AZ91HP magnesium alloys were treated by vacuum laser melting.
结果表明，激光处理层分三层：熔凝层、过热层和相变硬化层。
The results show that, the laser treated layer includes surface melted layer, overheating layer and transformation hardening layer.
通过熔凝后的组织和性能变化，研究了熔凝处理对45钢的影响。
It was studied that Laser melting treatment 45 steel was effected through transformation of microstructure and property.
结果表明，熔凝区晶粒得到细化，镁合金表面的性能得到明显提高。
The results indicate that the grains of the melted layer are refined and the properties of the surface of Mg alloy are obviously improved.
为了提高硼铸铁缸套的耐磨性能，对硼铸铁气缸套进行激光熔凝处理。
In order to improve the wear performance of boron cast iron cylinder liner, the laser remelting process has been used.
研究了渗稀土激光熔凝复合处理对纯铁表面耐磨性能及微观组织的影响。
This paper studies the effects on pure fe surface and the microstructure using the method of permeating re combined with laser melting modification.
采用大功率连续CO2激光熔凝掳粉末，生长得到纯度较高的太阳能多晶硅材料。
The solar energy polycrystalline silicon having higher purity grew through melting and coagulating silicon powder with high power CW CO2 laser.
采用激光快速熔凝和深腐蚀技术，对快速凝固过程中铸铁的共晶生长进行了研究。
The eutectic growth of cast iron during rapid solidification has been studied with laser remelting and deep etching.
激光熔凝后产生的金属间化合物对提高复合镀层的硬度和耐磨性起到重要的作用。
After laser melting, NiAl intermetallic play a important role of higher hardness and antiwear properties.
结果表明，激光熔凝能提高镁合金的表面硬度及耐磨性，但未能提高其耐蚀性能。
The results show that the laser melting may improve the surface hardness and wear resistance of AZ91D magnesium alloy, but the corrosion resistance will not be increased.
结果表明，激光熔凝处理后获得超细化的枝品组织，其抗弯强度和耐磨性显著提高。
The experimental results show that super-refined microstructure is formed in the remelting layer. The bending strength and wear resistance are enhanced evidently.
对重熔区显微组织进行了研究，研究表明：激光重熔区分为熔凝区、过渡区及热影响区；
The result of microstructures analysis show: there are melted zone , transient zone and heat affected zone in the laser melted layer.
利用激光圆形光斑对称性的特点，建立了激光表面快速熔凝条件下温度场的二维数值模型。
Based on symmetry of the circular light spot of the laser, a two dimensional numerical simulation of temperature fields of laser molten pool has been developed.
实验室、卫生或医疗用之玻璃器，已否刻度或校正者均在内，属熔凝石英或其他熔化硅砂制者。
Laboratory, hygienic or pharmaceutical glassware, whether or not graduated or calibrated, of fused quartz or other fused silica.
借助于光学显微镜、扫描电镜和EDS能谱分析等方法研究了熔凝层显微组织和溶质浓度分布。
The microstructure and solute concentration distribution of solidified layers is studied by means of optical microscope, SEM and EDS analysis methods.
激光熔凝工艺参数、材料的热扩散情况和材料的热物性参数的不同是造成上述现象的主要原因。
The main reasons are the differences of laser remelting technical parameters, the dissipated heat case of materials and the thermophysical properties of materials.
激光熔凝处理的数学模型是以激光与材料相互作用的过程及其此后发生的物理规律为基础建立的。
The numerical model is set up on the basis of the action and mechanization generated by laser and material in laser melting process.
激光表面熔凝、合金化、复合强化、熔敷等技术在镁合金的防腐、防磨损方面已取得了一定的成果。
Laser surface processing techniques such as melting, alloying, composite intensifying and cladding have obtained some achievements on corrosion and wear protection of magnesium alloys.
在实际应用中，轧辊过钢量提高了1.5~1.8倍，使激光熔凝处理成为提高轧辊过钢量的一个有效途径。
In application the(rolling) capacity increases by 1.5-1.8 times, that means the laser consolidation treatment is an effective(approach) to increase the rolling capacity of the rollers.
在实际应用中，轧辊过钢量提高了1.5~1.8倍，使激光熔凝处理成为提高轧辊过钢量的一个有效途径。
In application the(rolling) capacity increases by 1.5-1.8 times, that means the laser consolidation treatment is an effective(approach) to increase the rolling capacity of the rollers.
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