Spalling was a major form of contact fatigue failures in nitriding steel.
氮化钢的主要接触疲劳破坏形式是剥落。
The result shows that the argon gas can effectively decrease the hardness gradient and improve the thermal fatigue behavior of ion nitriding steel H13.
结果表明：氩气能有效降低渗层的硬度梯度，提高离子渗氮h 13钢的热疲劳性能。
Nitriding develops extreme hardness in the surface of steel. This hardness ranges from 900 to 1,100 Brinell, which is considerably higher than that obtained by ordinary case hardening.
渗氮在钢表面获得远远超出正常标准的硬度。其硬度范围为900到1,100布氏硬度，这远高于普通表面硬化所获得的硬度。
Typical materials include ductile iron castings or steel forgings. Most crankshafts require some form of heat treating including case hardening, nitriding and induction harden.
特殊的材料包括球墨铸铁和钢煅品，大部分机轴经过热处理，表面硬化、渗氮和感应淬火。
The experimental results showed that the presence of RE could obviously accelerated nitriding process of LD steel.
结果表明：稀土对LD钢的氮化过程有明显的催渗作用；
The results show that the hardening depth of steel by composite treatment is much larger than that of single treatment of ion nitriding.
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 valve rod (steel 35) is nitrided in the fluid soft nitriding process, the main material being made up of urea.
采用以尿素为主要原料的液体软氨化工艺，对阀杆(35钢)进行了氮化处理。
Various influence factors were analyzed in detail on nitriding distortion of the piston rings made of martensitic stainless steel based on abundant researches.
在大量试验的基础上，深入分析并研究了马氏体不锈钢活塞环渗氮畸变的各项影响因素。
Many studies and practice indicate that the service life of the stainless steel parts can be prolonged by optimally choosing the material and plasma nitriding treating.
研究与实践证明，通过合理的选材，采用等离子渗氮处理，能更好地挖掘不锈钢的潜力，延长不锈钢零件寿命。
The results indicate that it has visible effect on restraining arc discharge and hollow cathode discharge as well as ion nitriding on high-chrome steel material surface.
结果表明，交流脉冲放电在抑制弧光放电和空心阴极效应方面是非常有效的，对于高铬钢材料表面的离子渗氮作用是明显的。
The gas nitriding technology of H13 steel was studied by an orthogonal test.
运用正交试验法，研究H13钢气体渗氮工艺。
The heat treatment technology of carbo - nitriding of steel has the characteristic of lower treatment temperature and direct quenching.
钢的碳氮共渗热处理工艺具有共渗温度低、可直接淬火等特点。
Machine barrel and screw arbor of extrusion machine both adopt quality alloy steel, with nitriding and fine machining.
挤出机的机筒、螺杆均采用优质合金钢，经氮化和精密加工。
In this paper, technology of nitriding quenching of 45 steel is presented.
介绍了45钢渗氮淬火复合处理工艺。
AISI304 stainless steel was treated by plasma electrolytic nitriding technique in solution.
利用液相等离子体电解渗氮技术对AISI 304不锈钢进行了渗氮处理。
The results show that the surface hardness wearable and service properties may increase significantly by nitriding into the steel . It can satisfy the technological standard of the factory.
结果表明，渗氮后明显提高钢的表面硬度、耐磨性和使用寿命，满足了工厂提出的技术要求。
The results of experiments showed that the Nb can raise the depth of diffusion zone, hardness, wear resistance, strength and toughness of the nitriding layer of the matrix steel.
实验结果表明，铌能增加扩散层深度、硬度及耐磨性，提高渗层的强韧性。
The results show that the plasma nitriding can improve the wear resistance of H13 die steel at high-temperature.
结果显示：离子渗氮可以大幅度改善挤压模具钢的高温耐磨性。
The results show that the plasma nitriding can improve the wear resistance of H13 die steel at high-temperature.
结果显示：离子渗氮可以大幅度改善挤压模具钢的高温耐磨性。
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