细晶的合金组织有助于改善铜铬触头材料的电性能。
Fine microstructure is beneficial to improving the electric properties of contact materials.
为什么在温度变化时雪晶的形状也随着变化，从薄且平的盘状变成长且细的针状，这仍是一个科学之谜。
Why snow crystal shapes change from thin, flat plates to long, slender needles when the temperature changes remains something of a scientific mystery.
等径弯曲通道变形（简称ECAP）具有获得超细晶组织和改善力学性能的潜力。
The equal-channel angular pressing (ECAP) had achieved the potential for obtaining ultra-fine grain and improving mechanical properties.
黄河干，土地变得贫瘠，满身灰尘的细晶和莫亚解决了86年的消耗沙漠研究。
The Yellow Lands became dry and barren, caked in fine crystalline dust, and the settlement of Moya was consumed by the desert in year 86.
研究了K418合金细晶形成的方法，细晶叶片的铸造工艺参数及其获得的晶粒度等级，并讨论了细晶形成的原理。
Forming method of fine grain, processing parameters of casting fine grain blade, and grain size scale of K418 alloy were investigated. The principle of forming fine grain was discussed.
细晶强化是该合金强度和伸长率提高的主要原因。
Fine grain strengthening is the main factor for the improvement of strength and elongation.
锂单质会结成晶枝样的长细金属丝，这就可能会造成短路，引发过热、火灾等安全问题。
This metallic form of the element may grow into filaments called dendrites that cause short circuits, and thus overheating and fires.
本文对先进涡轮盘坯件，即纯洁、均匀、细晶组织的高温合金坯件制备三种工艺，以及涡轮盘零件锻压成形技术进行综合评述。
In this paper the three manufacturing technologies for making high quality preform, namely clean, homogeneous and fine grained preform and the forging practice of advanced turbine disk is reviewed.
高能气动喷丸是通过剧烈塑性变形产生细晶材料的方法之一。
Shot Peening(SP)is a typical severe plastic deformation method to produce ultra-fine grains of metallic materials.
而其中的细晶强化不但可以提高钢的强度，而且还可以提高其塑性和韧性。
The grain refinement strengthening not only enhances strengthening of steel, but improves toughness and plastic.
在试验的焊接条件下，WCX355超细晶钢在热影响粗晶区未有明显脆化，在回火区也未发生软化现象。
Under the experiment's welding condition, WCX355 ultrafine grained steels didn't distinctly embrittle in CGHAZ and didn't soften in tempering zone either.
金厂沟梁金矿区中与成矿伴生的暗色脉岩主要是细晶闪长岩石英闪长岩、闪长玢岩英安斑岩类。
The dark dikes associated with mineralization in the Jinchanggouliang mine area, are mostly fine diorite-quartz diorites and diorite porphyrite-dacite porphyries.
同时在结晶器中增加细晶排出装置，降低晶核数量，提高晶体生长速率，达到改善结晶质量的目的。
Meanwhile, fine crystal discharge device was added in crystallizer to decline quantity of crystal nucleus and to increase crystal growth rate so as to reach the aim of improving crystalline quality.
细晶、裂纹偏转和晶粒桥联是碳化硅陶瓷的主要增韧机制。
The fine grains, crack deflexion and grain-bridging are main toughening mechanisms of silicon carbide ceramic.
利用外加物理场凝固细晶技术是目前材料加工领域的研究热点。
The applied physical field on solidification to refine grain is presently the hot research direction in material processing.
闽东南沿海晚中生代变质带内出露的I型花岗岩、细晶岩和伟晶岩中常包含岩浆成因的石榴子石和原生白云母。
I-type granites, aplites and pegmatites outcropping in Mesozoic metamorphic belt of the southeastern coast of Fujian Province contain commonly magmatic garnets and primary muscovites.
研究了电解法生产的细晶铝锭的晶粒细化能力。
The grain refining efficiency of grain-refining aluminium ingots is studied.
变形温度和变形速率是获得超细晶材料的关键。
The temperature and the deformation rate are the key factors to prepare ultra-fine grain materials.
对铜材进行异步累积叠轧并退火处理，制备出了均匀稳定的超细晶铜材。
The uniform ultra-fine grained copper was prepared by asymmetrical accumulative rolling bonding(AARB)and anneal.
径向锻造可获得全截面细晶材料，并实现高合金难变形材料由锭到材的一火次锻造。
The gross section fine grain material can be obtained by radial forging. One heat forging from ingot to finished products of high alloy with hard deformation can be realized.
镁基复合材料的强化主要来自增强体的强化作用、细晶强化和析出强化。
The composite was strengthening by the reinforced phase, refining the grain and deposition.
探讨一种连续等通道角挤压(ECAP)新技术，实现了纯铝的无限长度连续大变形，制备出具有超细晶结构的金属材料。
A new continuous equal channel angular pressing (ECAP) technique was developed and successfully produced unlimited length of pure aluminum with ultrafine grain.
结果表明在细晶粒和塑性晶界条件下具有较好的疲劳性能。
The result shows that the better fatigue properties are achieved under the fine grain size and the plastic grain boundaries.
超细晶粒钢激光焊接接头粗晶区有较好的韧性。
The coarse grain zones of laser welded joint of super fine grain steel show good toughness.
在高温下，由于钡空位的增加、晶粒较细晶界较多和晶界的氧化作用等增加了材料的PTC效应。
The improvement of the PTC characteristics was induced by the more oxide of the grain boundary of the refiner particle size and an increase of the Barium vacancy.
非典型等轴细晶材料超塑变形中复杂多变的显微组织易于产生晶粒群的运动形式。
Grain group movement is easy found in superplastic deformation of the materials with complex microstructure.
测试了不同温度下细晶铸造和普通铸造K418合金的拉伸性能。
The tensile properti. es of K418 cast alloys by fine grain casting process and coventionally cast process have been determined at different temperatures.
以T／P91钢为代表的新型细晶强韧型铁素体耐热钢及以TP347H为代表奥氏体不锈钢等超超临界机组锅炉用钢，已经不断被开发和应用。
As the representation of these kinds of steel, T/P91 of new grade boiler steel and TP347H of stainless steel have been developed and applied.
粗晶组织比细晶组织的裂纹偏折更大，粗糙度诱发闭合效应更强，因而裂纹扩展较幔。
The short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.
粗晶组织比细晶组织的裂纹偏折更大，粗糙度诱发闭合效应更强，因而裂纹扩展较幔。
The short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.
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