镍

The nickel aluminide alloys rolls provide greater high- temperature strength and wear resistance compared to the conventional H series alloys currently used.

与目前使用的常规h系列合金相比，镍铝合金轧辊提供更大的高温强度和耐磨性。

The recent advances in the first principles calculations and atomistic simulations further help us in understanding atomic bonding, dislocation configuration and alloying effects in intermetallics which has led to the development of nickel, iron and titanium aluminide alloys with improved mechanical and metallurgical properties for structural use.

第一原理计算和原子结构模拟的新近研究结果能进一步帮助了解金属间化合物的原子结合键性质、位错组态和合金元素的作用。对基本问题的更好了解导致镍、铁和钛的铝化物金属间化合物合金的力学和冶金性能的改进，更接近了结构方面应用的要求。

Aluminum oxide;Nickel aluminide;Functional gradient composite material;Oxidation resistance;Hydrothermal method;Hydrothermal anodic oxidation

中文关键字氧化铝；镍铝介金属；功能梯度复合材料；抗氧化性；水热法；水热阳极氧化法

This study is to investigate the high temperature hot corrosion behavior of aluminide coating and platinum-aluminide coating on Ni-base superalloy MAR-M247. On the platinum-aluminide, aluminide and the base metal, respectively, by the salt spraying method.

本文研究MAR-M247镍基超合金表面经铝化涂层或白金铝化涂层处理后，其热腐蚀效应对腐蚀速率与显微组织之影响，并藉试片质量增加量的变化评估抗热腐蚀的能力。

Using EDTA as titratant,murexide as indicator,sodium tartrate ammonium fluoride and sodium thiosulfate as masking agent, nickle concentration was determined in ammonic medium.

以EDTA为滴定剂，紫脲酸铵为指示剂，NH4F、酒石酸钾钠、Na2S2O3为掩蔽剂，在氨性介质中测定镍的浓度；在pH值为8.0的氨-氯化铵缓冲液中，采用滴定比色法测得钴的浓度。

Methods Seventy-six patients with olecra- non fracture were divided into steel needle and tension belt fixation group,anconeal process of ulna anatomical steel plate treatment group and nickel-titanium alloy internal fixator group.

方法采用回顾性方法将76例尺骨鹰嘴骨折分为钢针张力带治疗组与尺骨鹰解剖嘴钢板治疗组和镍钛记忆合金组，并依据庞桂根等的远期疗效评定标准进行疗效评价。

The effects,advantages and disadvantages of anionic and cationic membranes and their combinations under different conditions were compared.

结果表明单阴膜法在处理pH值为0.5～1.0，初始镍的质量浓度为1000～2000mg／L的废水应用中有更好的处理效果。

Anti-aging effects of non-lead and non-nickel antiager of 4,4 -Bis(alpha,alpha-dimethylbenzyl)diphenylamine(445)and 2-phenyl mercaptan parallelism imidazole were dealt with on the mechanical properties and vulcanizing performance of epichlorohydrin rubber.

研究了不含铅、镍重金属盐的防老剂445[4，4′-双(2，2-二甲基苄基)二苯胺]和2-硫醇基苯骈咪唑用于氯醚橡胶的防老化作用，考察了防老剂对ECO的力学性能和硫化特性等性能的影响。

For example, ferric oxidate, chromium (Cr6+), ni ckel in wilding fume, and asbestic products, radiation of extremely low frequency electric fieldsand smoking in welding operations.

综述了与电焊工人肺癌有关的几个因素，如电焊烟尘中铁氧化物，六价铬和镍，焊接作业时石棉制品的接触和超低频电场的辐射，吸烟等。

There are there grades of austenitic stainless steel widely used in China-200 series, 300 series and 400 series.

中国广泛试用的是三种奥氏体不锈钢，200系列、300系列、400系列，而镍铬基不锈钢300系广泛应用于见者和生产行业。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。