耐磨性

Its comprehensive coverage focuses on development of martensitic layers, ductility, and wear resistance because of direct quenching.

它的广泛报导集中在由于直接淬火马氏体层、延展性和耐磨性发展。

By means of the analyses of SEM and metallograph and physical tests,the microstructure and properties of the composites made from copper-coated-TiB2 have been studied.

1引言硼化物陶瓷具有极高的熔点、高化学稳定性、高硬度和优异的耐磨性，基于这些优点，成为复合材料强化物的首选材料之一。

The metallograph, x-ray diffraction, TEM, EMPA and XPS technigues were used to research the microstructure, phase structure, microhardness, composition, Valence of composed elements, internal stress of coatings, and to measure the wear-resistance and resistance to high-temperature oxidation, too.

文中应用金相分析、X-射线衍射法、透射电镜、电子探针显微分析法和X-射线光电子谱法等手段研究了N膜的显微组织、相结构、显微硬度、膜层成分、组成元素的价态和膜层内应力等性能；还测定了铝合金表面的N膜的耐磨性和抗高温氧化性能。

The results show that the composite coating is metallurgically bonded to the substrate and the microstructure is fine and uniform. The hardness of the composite coating is up to 400 HV, which is 2.5 times that of the substrate. Under room temperature and oil lubrication condition, the sliding wear tests indicate the friction coefficient and weight loss of the composite coating are smaller than those of substrate. The worn surface of the composite coatings is much smoother than that of the substrate, without grooves and crater.

结果表明，复合材料涂层与基体形成良好的冶金结合，微观组织细小、均匀；复合材料涂层硬度达400HV，约为基体的2.5倍；在室温油润滑条件下，滑动磨损试验表明复合材料涂层摩擦系数和失重均小于基体，磨损表面划痕较浅且平滑，无明显的犁沟、粘着、剥落现象；激光表面合金化显著提高了材料的耐磨性。

The effects of compound modificator on microstructure,mechanical properties,wearing properties and damping properties of ZA27 alloy have been studied.

研究了复合变质剂对ZA2 7合金组织、力学性能、耐磨性和阻尼性能的影响。

Function of bond parameter Modificator Anti impact abrasive wear

化学键参数函数；变质剂；冲击耐磨性

The results showed that the three kinds of prealloy powder have excellent low temperature sintering characteristics and good wear resistance. They have excellent physical and mechanical characteristics close to ultrafine cobalt and imported prealloy powder, good retention to diamond and excellent bonding momental for high frequency brazing. At one time, they have lower cost and reduced dosage.

结果表明：三种预合金粉末有着优良的低温烧结性能和耐磨性，表现出接近于超细钴和相当于国外代钴粉末的优良的物理、机械性能，对金刚石把持力高；具有高的高频钎焊结合力矩；粉末成本较低，用粉量可降低。

The effect of temper temperature on microstructures and wear resistance of surfacing deposits of ferro-based multicomponent alloy was investigated.

研究了回火温度对铁基多元合金堆焊层组织及耐磨性的影响。

The double effect of high-speed multicycle impact,speed and load fluctu ant characteristics is the key factors influencing on wear resistance and multicycle impact resistance for th e high-speed automotive chain.

高速多冲以及速度与载荷交变特性的双重效应，是影响汽车用高速滚子链耐磨性和多冲抗力的关键因素。

In order to strengthen its antifriction property, the material nature of the boards chooses a special formula of high molybdenum, high chromium and nickelic.

为增强其耐磨性，衬板采用的是高钼、高铬、高镍特种配方。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。