激光淬火硬化层应力状态为压应力。
轴颈及花键底径的硬化层深度为（0。
When hardened layer depths of axle neck and spline bottom diameter is(0.
根据温度场预测了硬化层深度和宽度。
According to the temperature field, the depths and widths of the hardened band were predicted.
研究了有效硬化层分界处的碳含量及显微组织特征。
The carbon contents and microstructure in the boundary of effective hardening layer were also discussed.
因此，辊子需要较高的表面硬度和较深的硬化层深度。
Thus, these rolls require a higher surface hardness and must be hardened to a greater depth.
通过灰铸铁激光相变硬化实验，实测了硬化层深度和宽度。
The width and depth of the phase transformation hardened zone were measured.
金属表面硬化层深度的检测是一项非常重要而又困难的工作。
Nondestructive testing of metal hardened depth is an important and difficult job, which belongs to material property testing.
最后给出用该方法对硬化层深多频涡流检测信息融合的结果。
Emphasis was on a fuzzy set data fusion algorithm which could be used for multi-frequency eddy current signal processing.
获得了金相组织的变化，获取了试验后的硬化层深度和宽度。
Metallographic change is also researched. The hardened surface band depths as well as hardened surface band widths were obtained.
结果表明，激光相变硬化层中的残余压应力是普遍存在的现象。
The experimental results show that the residual compressive stresses existed in the laser hardened case are universal phenomena.
在新标准中，规定了金相组织的分级和用硬度法测定硬化层深度。
In this new standard, the classification of microstructure and measurement of the thickness of hardened layer via the expression of hardness have been stipulated.
结果表明，表面熔化处理后的硬化层的硬度梯度平缓，耐磨性高。
The results showed that the hardening layer has better hardness gradient and high wear resistance.
结果证明：复合处理的淬硬层深度大于非氮化激光处理的硬化层。
The results show that the hardening depth of steel by composite treatment is much larger than that of single treatment of ion nitriding.
研完了表面状态、斑尺寸、率及扫描速度对硬化层特征及耐磨性的影响。
The influence of coating, spot size, power and scanning speed on hardening layer features and wear resistance were studied.
推导了激光相变硬化层的残余应力公式，并对实验结果进行了分析讨论。
The formula of residual stress in laser transformation hardened case is inferred, and the experimental results are discussed.
在实验方面从金相组织、硬度分布及硬化层、等几个方面进行了对比分析。
In the experiments the microstructure, hardness and hardened layer, and several other areas were compared.
热处理、碳化、淬火硬化层，表面覆层，钢，有色金属，微小及薄形零件等。
Heat treated layer, carbonized layer, hardened hard layers, superficial coating, steels, non-ferrous metal, micro and thin shaped components.
激光功率的增大、扫描速度的减少都会使硬化层深度和硬化层宽度得到增加。
The depths and widths of the hardened band rises with increase in laser power or decrease in laser scanning velocity.
研究了两种基体的亚共析钢经激光处理后，其硬化层的硬度梯度及其磨损特性。
The hardening gradient and the character of abrasion in hardening layer of hypoeutectoid steel with two kinds of matrixes that was treated by laser beam have been studied.
用扫描和高压透射电子显微镜研究了灰铸铁激光硬化层微区组织形貌和精细结构。
Micromorphology and fine structure in laser hardened layer of grey cast iron have been investigated with scanning electron microscope and high-voltage transmission electron microscope.
在此基础上，并参照国外的有关资料提出了不同模数时的最佳有效硬化层深度值。
On the basis of this, with reference of foreign information, the paper offers optimal effective hardened layer' thicknesses related to different module of gear.
由于硬化层与基体的微观结构不同，也就为超声波测量硬化层的深度提供了条件。
The micro-structure of hardening layer and motherly-body is different, which provide passibility for measuring the depth of hardening layer by supersonic ware.
对材料硬度、硬化层深度、晶粒大小、极限强度等主要采用电磁检测和超声检测。
Electromagnetic testing and ultrasonic testing are the main points for materials hardness, hardness depth, crystallite size, limiting intensity etc.
激光相变强化工艺参数的硬化层特性影响较大，在产品应用之前必须进行工艺验证。
The technological parameters of LTHT can affect the characteristics of hardening case, so verification must be conducted before applying the product.
双程磨削淬硬可使表面硬化层深度及其均匀性、显微硬度及耐磨性得到进一步提高；
The depths and its uniformity of the surface hardened layer, its microhardness and wear resistance are further improved under two-passes grinding.
硬化层的特征通常由它的硬度、深度来表征。硬化层材料的微观结构又取决硬化过程。
The feature of hardening layer is usually expressed by its hardness and depth, and the micro-structure of its material is determined by the hardening process.
与干磨相比，湿磨硬化层表面残余压应力有所提高，但其硬化层深度减少了约30%。
Compared with the dry-grinding, the surface compress residual stresses of the hardened layer under wet-grinding is increased, but its depth of hardened layer reduces about 30%.
与干磨相比，湿磨硬化层表面残余压应力有所提高，但其硬化层深度减少了约30%。
Compared with the dry-grinding, the surface compress residual stresses of the hardened layer under wet-grinding is increased, but its depth of hardened layer reduces about 30%.
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