缩短恒温时间可以使HA晶粒细化。
The HA crystals can be fined by shortening the hydrothermal time.
介绍K418 高温合金晶粒细化的方法。
The method of grain refining on K418 super alloy is discussed.
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.
激光相变硬化机理主要是马氏体强化和晶粒细化。
The mechanism of laser hardening is martensitic hardening and grain refining.
钢中铌的沉淀析出具有沉淀强化和晶粒细化的作用。
And the precipitation of Nb has the effect of precipitation hardening and grain refinement.
稀土元素的加入使得亮镍电镀金刚石工具镀层晶粒细化。
The rare-earth element causes small size grains of bright nickel plating.
讨论了细化晶粒的几种方法：退火、添加晶粒细化剂和激冷。
Several methods for refining grains including annealing, adding grain refiner and quenching were discussed.
多元膜层强化机理主要是：晶粒细化、固溶强化、多元素优化。
The main strengthening mechanisms of (Ti, Cr)N films were grain fining, solid solution strengthening and multi elements strengthening.
综述了中间合金细化剂对铝合金晶粒细化处理的研究与应用现状。
The present situation of application and study of master alloy refiners in aluminum alloys was reviewed in this paper.
采用TM CP工艺，靠晶粒细化和析出强化保证了钢材的强韧性。
Adopting TMCP technique, the steel is assured to have strong toughness owing to grain refining and precipitation strengthening.
本文研究了一种强有效的晶粒细化剂对铝合金宏观晶粒组织的影响。
The effect of a kind of efficient grain refiner on the macrostructure of aluminum alloy was investigated.
分析结果表明，轧制变形使板带晶粒细化，抗拉强度增加，伸长率降低；
The results show that the rolling will make the grain fine, the tensile strength increased and the prolongation rate reduced.
球磨时间和退火热处理是粉末金相组织变化和晶粒细化的主要影响因素；
Milling time and annealing heat treatment are the main influencing factors for changing powder structure and fining grain.
由于晶粒细化和再结晶结果，基本得到强化，提高了球墨铸铁的综合性能。
Because of the grain refining and recrystallization, the matrix was strengthened and the synthetic properties of nodular cast iron were improved.
采用稀土变质处理，可使晶粒细化，从而有效地提高机械性能和抗磨性能。
The modified treatment by RE can refine the crystalline gain and thus, increasing the mechanical property and wear resistance significantly.
此非晶合金的形成是晶粒细化、球磨过程中的缺陷和应力等多种作用的结果。
The amorphous forming relates with variety of the crystal size, defect and stress during ball milling.
研究了电阻焊电极合金经93K低温处理后晶粒细化对高温屈服强度的影响。
The influence of resistance welding electrode alloy's grain refined after 93k cryogenic treatment to high temperature yield strength is studied in this paper.
在此基础上对钢的淬透性影响因素、晶粒细化及非金属夹杂物控制等进行了详细研究。
On the basis of the above, gear steel's hardenability, grain refinement and nonmetal inclusion control elaborate have been discussed.
提出了利用铝锭、氟钛酸钾、铝粉、六氯乙烷和碳粉制备铝钛碳晶粒细化剂的新方法。
The new preparation method of Al-Ti-C grain refiner was studied with aluminium ingot, potassium hexafluorotitanate, aluminium powder, hexachloroethane and carbon powder.
强磁场作用于相变时引起的高温钢辐射散热系数的增加是导致晶粒细化的主要原因之一。
One of the main reasons of grain refinement is that radiation increases for hot steel with magnetic field.
结果表明挤压一次后，晶粒内位错密度急剧增加，形成位错纠缠，晶粒细化效果最明显；
The results show that grain size is significantly refined due to the sharply increases of dislocation density in grain resulting in dislocation tangle after one-turn pressing.
利用机械合金化过程产生的颗粒细化、晶粒细化、表面活化及储能作用可以达到上述要求。
The above requirement can be attained by the refinement of the granule and the crystalline grain, surface activation and store-energy effect obtained during the process of mechanical alloying.
稀土合金具有变质、晶粒细化和净化铝合金的综合功能，而且对周围环境不产生任何污染。
Rare Earth(RE) elements possess integrated effects on modifying, refining and purifying of casting Al alloys without any pollution.
采用快速凝固技术获得激冷片，将其加入同成分铝液中以实现对铝的无合金污染的晶粒细化。
The grain refinement of aluminium with no alloy pollution can be achieved by adding rapidly solidified sheet into aluminium melt with same chemical composition.
采用熔盐净化剂与循环过热相结合的方法，对DZ125高温合金晶粒细化机制进行了系统研究。
The grain refinement mechanisms of undercooled DZ125 superalloy melt were systematically investigated by the method of molten salt purification combined with cycled superheating.
评述了铝硅活塞合金的种类，化学成分，晶粒细化，变质处理，合金化和热处理工艺等优化手段。
It reviews the optimization measures of Al-Si piston alloy, including kinds, chemical composition, grain refinement, modification, alloying and heat treatment.
利用SEM和能谱分析，研究了其微观形貌的变化，并对球磨粉末的晶粒细化机理进行了一定的研究。
The morphology of the powders was studied by SEM and EDS, on which the discussion of grain refinement mechanisms is based.
由三种不同成分的拉伸试验结果与金相组织可知：一组成分的含钒量增加，晶粒细化，从而强度增大。
The testing results and their microstructure show that the one with a higher vanadium content and smaller crystal grain has a high strength.
结果表明：增加冷却速率、预变形处理和晶粒细化有利于初始凝固组织中存在的非平衡组织的分散细化。
The results show that, increasing cooling rate, pre-deformation and grain refinement are useful for spreading of the non-equilibrium microstructure around the primary grains.
结果表明：增加冷却速率、预变形处理和晶粒细化有利于初始凝固组织中存在的非平衡组织的分散细化。
The results show that, increasing cooling rate, pre-deformation and grain refinement are useful for spreading of the non-equilibrium microstructure around the primary grains.
应用推荐