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There are action of exchanging electron and energy in square 4L loop which is made of neighboring 4 iron ions in dilute gold-iron and copper-iron alloy By means of this action, thermoelectrical potential of alloy, magnetic moment of iron ion, Curie temperature, maximal value and minimal value temperature of resistance, specific heat increase and decrease entropy of conduction electron and negative magneto-resistance effect are calculated in this paper and the results are equal to testing value.

利用稀释的金铁和铜铁合金中相邻4个铁离子构成的正方形4L回路上的铁离子间存在交换电子和能量的作用过程计算了合金的热电势、铁离子磁矩和居里温度、电阻极大值温度和极小值温度、传导电子的比热增加和熵值减少、负磁阻效应等，与测量值相符。

Combining with the production control of low-alloy steel with niobium , the main reasons of surface transverse crack of low-alloy steel slab with niobium were put forward.

介绍了铌元素的作用和行为及在常见钢种中的作用，结合含铌低合金钢的生产控制，分析出造成含铌低合金钢连铸坯表面产生横裂纹的主要原因，并采取相应的技术措施，提高铸坯表面质量。

A novel type of foundry method for TiAl-based alloy is presented in the present paper. The filling processes of Ti-47Al alloy sheet and blade have been studied via numerical simulation.

中文摘要：提出了一种钛铝基合金金属型真空吸铸成形新方法，并通过数值模拟研究了TiAl基合金薄板、叶片的充型规律。

TC4 alloy is a kind of alpha-beta titanium alloy with middle strength developed since the 1950s. It is consisted of 6% alpha element aluminium and 4% beta element virginium.

TC4钛合金是上世纪五十年代发展起来的一种中等强度α-β两相型钛合金，它含有6％α稳定元素铝和4％β稳定元素钒。

Specialized in manufacturing electronic alloy wire, diode leads, glass sealing diode and plastic product, diodes, Electronic factory users wholeheartedly with electronic components distributor units supporting series products, You can also lead to electronic alloy products manufacturing unit provides users or related production equipment and wire consulting services.

专业生产供应电子合金线材、二极管引线、玻封二极管和塑封二极管成品；竭诚为电子电器厂家用户与电子元件经销合作单位配套系列产品；同时也可为电子合金引线产品用户或生产加工单位提供引线设备与相关生产咨询服务。

In the paper ,microstructure evolutions, mechanical properties, small pox phenomenon on the surface, and corrosion mechanism of die-cast magnesium alloy AZ91D,have been investigated and discussed in detail by means of metallography, SEM, tensile strength testing and salt spraying test combined with computer-aided flow in die analysis, some important conclusions are got and listed in the following1 Structure of the die-cast magnesium alloy AZ91D is composed of global-like structure, which is fine and homogeneous, and actinomorphous dendritic grains.

本课题针对AZ91D压铸镁合金，通过金相分析、SEM分析、力学性能测试和盐雾实验，并结合计算机辅助模流分析，对薄壁镁合金压铸件3C产品的显微组织演化，力学性能，爆痘现象和腐蚀机理等进行了较为细致的研究和讨论，得到如下重要结论。

Based on allotropic transformation of ingot,the definition,strength performance and feature of the iron-carbon alloy basic phase(ferrite,austenite and carburizing) are analyzed on the iron-carbon alloy phase diagram .

在铁碳合金相图上直接从工业纯铁的同素异晶转变开始分析铁碳合金基本相铁素体、奥氏体和渗碳体的定义、力学性能、特点等，再用铁碳合金基本相和相图的规律来分析铁碳合金相图的点、线和各区域组织。

An AlTiN ceramic coating was deposited on the surface of biomedical Ti6Al4V alloy by High Ionic Pulse technology. The properties of biofriction and wear of AlTiN coating in simulated serum lubrication at 37℃ were investigated and compared with that of non-coating Ti6Al4V alloy.

采用高度离子化脉冲工艺在医用钛合金Ti6Al4V表面制备AlTiN涂层；在摩擦磨损试验机上测试了涂层在37℃的模拟人体生理血清液润滑条件下的摩擦磨损性能，并与之和未经涂层的Ti6Al4V合金作比较。

Ion implantation of 3×10〓/cm〓 Y can slightly shorten the initiation stage, but has no obvious effects on the long period hot corrosion behavior of alloy M41. After corroded for 100 hours at 900 ℃, the gas aluminide coating of alloy M41 didn't initiate accelerated hot corrosion, but the coating has been seriously destroyed.

表面注入剂量为3×10〓／cm〓的Y略微缩短M41合金热腐蚀的孕育期，但对长时间的热腐蚀影响不大。M41合金气相渗铝涂层热腐蚀100h后，没出现加速热腐蚀，但涂层破坏严重。

At 900℃, alloy M41 and K3 display similar isothermal oxidation rates which are lower than the oxidation rates of their aluminide coatings. At 1050℃, alloy M41 has a lower isothermal oxidation rate and better scale adherence than K3, and the oxidation rates of the two alloys are higher than that of their aluminide coatings.

900℃下M41和K3合金的氧化增重近似，都比气相渗铝涂层的小，氧化膜均无明显脱落。1050℃下M41合金的氧化增重小于K3合金，氧化膜脱落较轻，K3合金氧化膜脱落严重；该温度下两合金的氧化增重都大于渗铝涂层。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。