This family of alloys provides a good combination of cost, strength, and corrosion resistance, together with the high fluidity and freedom from hot shortness that are required for ease of casting.
大约85%的铝合金铸件是用铝硅铜合金生产获得(合金380.0和其几种变种)，这个合金的家族通常具有成本，强度和抗腐蚀性等方面的优点，同时好的流动性和小的热收缩也是其方便之处。
The simulated tests in exhaust manifold gas and generating station coal gas have been achieved to evaluate the performance of resistance to corrosion on Fe〓Al alloys and its weldments、austenite stainless and low carbon steel.
本文还通过汽车尾汽和电厂燃煤气氛的模拟实验，研究了Fe〓Al基合金及其焊缝与对比材料A3钢、奥氏体不锈钢的耐腐蚀状况，结果表明，在两种实验条件下，Fe〓Al基合金都表现出了优异的耐腐蚀性能。
Because an oxidation film with high electrical resistivity and high melting point is easily formed on the surface of aluminum alloys, the heat generated by contact resistance plays an important role in spot welding.
由于铝合金表面易氧化形成高电阻率、高熔点的氧化膜，在电阻点焊时，界面处接触电阻产热对点焊质量有重要的影响。
Zirconium alloys are employed extensively in light water cooled reactors as the cladding materials of fuel elements and other structural materials because of the low capture cross-section for thermal neutrons, good resistance to water-side corrosion at elevated temperature, adequate mechanical properties and high thermal conductivity.
由于锆的热中子吸收截面小，并具有优异的耐高温水腐蚀性能、良好的综合力学性能和理想的热导率，因此，锆合金被用作核电站水冷动力堆核燃料元件的包壳材料和堆芯的其它结构材料。
Objective To investigate the effects of Sol-Gel coating on the corrosion resistance of nickel-chronium alloys in vitro.
目的在体外模拟环境下，研究溶胶凝胶法制备的涂层对牙科烤瓷镍铬合金耐腐蚀性能的影响。
In comparison with traditional high temperature titanium alloys, TIMET Ti—1100 and IMI834 alloy with their improved compositions and unique treatment processes were developed to be of excellent creep resistance and good combination of mechanical properties at close to 600℃. Both of them became attractive candid materials with maxium service temperature used in aeroengine.
与传统高温钛合金相比，Ti－1100和IMI834以其改进的化学成分和独特的热处理工艺，在600℃下具有明显改善的蠕变性能，同时具有良好的综合机械性能，是目前高温钛合金在航空发动机上使用温度最高，最具魅力的候选材料。
By analysing the working conditions and the properties requirements of crucible for melting dental alloys, it is indicated that the critial factor for selecting the materials of crucible is high thermal shock resistance and the most appropriate material is aluminium titanate.
本文分析了齿科合金熔炼用陶瓷坩埚的工作条件和性能要求，指出坩埚的高抗热震性能要求是其材质选择的关键因素，确定了钛酸铝是制备高抗热震陶瓷坩埚的最适宜材料。
The results show that addition of Al-5Ti master alloy can coarsen grain coarsen; whereas additions of Al-5Ti-0.25C and Al-8Ti-2C intermediafe alloys can refine grain, and the effect of Al-8Ti-2C intermediafe alloy on grain refinement is obvious and the grains are finer and more uniform. The addition of Al-5Ti intermediafe alloy decreases the mechanical properties of AZ91D magnesium alloys, but additions of Al-5Ti-0.25C and Al-8Ti-2C intermediafe alloy can increase the tensile strength and elongation of magnesium alloys. The three intermediafe alloys improve The corrosion resistance of magnesium alloys.
结果表明，添加Al-5Ti中间合金使晶粒粗化，而添加Al-5Ti-0.25C和Al-8Ti-2C中间合金使晶粒细化，Al-8Ti-2C中间合金的细化效果明显且细化后组织细小均匀；添加Al-5Ti中间合金使合金的力学性能降低，而添加Al-5Ti-0.25C和Al-8Ti-2C中间合金均使合金的拉伸强度和伸长率得到了提高；添加Al-5Ti、Al-5Ti-0.25C和Al-8Ti-2C中间合金均使合金的耐腐蚀性能得到了改善。
To investigate the effect of titanium nitride coating on corrosion resistance of dental casting alloys.
研究氮化钛涂层对牙科铸造合金腐蚀性能的影响。
Therefore, it is necessary to improve corrosion resistance property of magnesium and its alloys.
因此，增强镁及镁合金的耐腐蚀性能是非常必要的。
This smart tribological property is the main reason of high wear resistance of TiNi alloys.
这种机敏摩擦学特性是TiNi合金具有良好耐磨性的主要原因。
The main materials are: Ocr18Ni9, 1Cr18Ni9iTi, 316, 316 L, CD4MCu, 904, 8 # alloy, 20 # alloy, Hastelloy alloy C, B, a decay resistance wear-resistant rubber-lined, F46 fluoride plastic alloys high-quality materials.
主要材质有：Ocr18Ni9、1Cr18Ni9iTi、316、316L、CD4MCu、904、8#合金、20#合金、哈氏合金C、B、内衬有耐腐耐磨橡胶、F46氟塑料合金等优质材料。
Because of the Vickers hardness and elongation of Vitallium 2000 and Vitallium 2000 plus are better than traditional dental alloys, so the RPD with Vitallium 2000 has good bending control, deformation rebound and fracture resistance.
Vitallium 2000在材料性能上有所改进，相对传统的常用铸造合金具有支架变形较小、折断的可能性低、卡环较易调改等优点。
In extruded shapes of 6013 alloys, corrosion resistance of alloy 2 is better than that of alloy 1ft.
52号挤压型材合金的耐蚀性比1号合金好，二者均比6063合金稍差。
Their constitutive equations are obtained; 3 There are interactions among different orientation twins if deformation temperature is low, and cracks are induced which propagate along twin boundary. The titanium burning behavior was examined by DCSB method. The burning products and the burn-affected zone were examined by OM, SEM and X-ray diffractiometer. The studying results indicate that: 1 Ti40 alloy reveals good burn resistance, while both C. P. Ti and Ti-6-4 burn fast under the same ignition conditions; 2 Ti oxides, i. e. TiO, TiO〓 and Ti〓O〓, are the main products after C. P. Ti burn in the air. There are Al and V oxides besides Ti oxides after Ti-6-4 burn. The burning products of the binary Ti-Cr alloys are TiO〓, TiO and TiCrO〓; V oxides, i. e. VO and V〓O besides Ti oxides are produced after Ti40 does in the air, however, Cr oxides are not found; 3 Compared with C. P. Ti and Ti-6-4 alloy, the interface between burning products and matrix for Ti40 is tenacious, which is Cr-rich layer. This layer can retard the oxygen diffusion into the matrix, and reduce the burning velocity obviously. The key factor influencing burn is the tenacity of the burning products; 4 Effects of alloying elemental V on the burning velocity are not obvious. Cr content in binary Ti-Cr alloys increases (＞10%), the burning speed reduces, but binary Ti-Cr alloys do not possess burn resistance; 5 Titanium alloys can burn continuously among the oxygen-rich atmosphere. Their burning speed decreases with increasing the ratio of N〓 to O〓 and/or Ar to O〓. 6 The five burn stages and burning model are proposed, the burn resistant model is put forward, and two burn resistant mechanisms are proposed, i. e. fast dispersion heat mechanism and suspend oxygen diffusion mechanism. 7 Ti40 reveals good burn resistant behavior because of its low melting point, high thermal conductivity, tenacity of oxidation layer and so on.
利用直流电弧激发燃烧新实验方法，采用金相、SEM和X射线衍射仪等手段研究钛的燃烧行为，结果表明：1）Ti40合金具有优于纯钛和TC4的阻燃性能；2）纯Ti在空气中燃烧的主要产物是Ti的氧化物（TiO，TiO〓和Ti〓O〓）；TC4合金除有Ti的氧化物外还有Al和V的氧化物；Ti-Cr合金的燃烧产物中，除了存在Ti的氧化物外，还存在TiCrO〓的化合物；Ti40除有Ti的氧化物外还有V的氧化物，但不存在合金元素Cr的氧化物；3）与对比材料纯Ti和TC4合金相比，Ti40合金的燃烧产物与基体的界面较致密，为富Cr的氧化层，可阻碍氧向基体内扩散，使合金的燃烧速度明显降低；燃烧产物的致密性对阻燃至关重要；4）在本试验范围内，V含量的变化（25%～35%）对合金的燃烧速度没有明显影响；在Ti-Cr二元合金中，Cr含量升高燃烧速度降低，但Ti-Cr二元合金并不具有阻燃性能；5）钛合金在富氧环境中可持续燃烧，N〓/O〓流量比或Ar/O〓流量比升高，钛合金的燃烧速度降低；若钛合金燃烧，可用Ar气或N〓气灭火，N〓气效果更好；6）根据以上试验结果提出了钛合金燃烧过程的五个阶段和燃烧模型；建立了阻燃的物理模型；提出阻燃钛合金的快速散热和中断氧输送阻燃机理；7）Ti40合金具有良好的阻燃性能是因其熔点低、热导率高、氧化层致密等因素综合作用的结果。
In this article, the effects of rare earth during the process of magnesium and magnesium alloys melting, including eliminating hydrogen、deoxygenating oxides e and preventing ignition are introduced, the influence and the correlative mechanisms of rare earth in refining the microstructures of magnesium, improving its mechanical properties at elevated temperature and corrosion resistance are also review...
本文主要综述了稀土元素在镁及镁合金熔炼过程中除氢、减少氧化夹杂、阻燃的应用，以及稀土元素对镁合金微观组织结构的细化、高温力学性能的改善和耐蚀性能提高等方面的作用和机理。
Mg-Al, Mg-Zn, Mg-RE, Mg-Th, Mg-Ag system alloys, rapid solidification magnesium alloy and magnesium-based composite in heat resistance are introduced. It suggested that Mg-RE system alloys can be rapidly developed because of their excellent heat-resistant property, but the alkaline earth metal elements can partially substitut the expensive RE elements.
介绍了Mg-Al、Mg-Zn、Mg-RE、Mg-Th、Mg-Ag合金系及镁基复合材料、快速凝固镁合金在耐热性能方面的发展；认为Mg-RE系合金由于其优良的耐热性能，可在我国大力发展，但碱土金属可部分代替昂贵的稀土元素。
The experimental results show that steady state creep rates significantly decrease with the adding of niobium element to form Mo-Nb solid solution alloys, which enhanced the diffusion resistance among atoms.
结果表明，Mo-Nb合金单晶中，溶质原子Nb的添加增大了原子间扩散阻力，使材料高温稳态蠕变率减小，大大提高了材料的高温抗蠕变性能；在1500℃，10MPa时，Mo-3Nb合金单晶的稳态蠕变率较纯Mo单晶降低了3个数量级，且其蠕变机理为扩散蠕变。
This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.
该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。
Overall, technological advancement has been made in enhancing creep and fatigue resistance in some lead-free alloys, which are identified for high fatigue-resistant applications.
总之，部分无铅焊料的抗蠕变和抗疲劳的强化技术方面有了一定的进展，这些技术可以应用到抗疲劳实践中去。