一般地，铸造组织为树枝晶组织，组织成分不均匀；
In general, dendrites occur in the microstructure of castings and the distribution of chemical elements is not homogeneous.
优点：可以破坏钢锭的铸造组织，细化钢材的晶粒，并消除显微组织的缺陷，从而使钢材组织密实，力学性能得到改善。
Advantages: it can destroy the ingot casting, steel grain refinement, and eliminating the defect in microstructure, thus making steel tissue close-grained, with improved mechanical properties.
激光上釉是通过细化铸造组织、减少偏析及形成高度过饱和固溶体等亚稳定相乃至非晶态而提高了材料的耐磨性、抗氧化性和抗腐蚀性能。
Laser glazing gives potential to enhance wear-resistance by refining grain structure, reducing segregation, producing supersaturation solid solution body and metastable or amorphous phases.
针对试生产过程中铸件产生的各类缺陷，从其形成机理和影响因素方面进行分析，研究挤压铸造各工艺参数对AZ81镁合金的铸造组织的影响。
Aiming at the various defects in production, the effects of squeeze casting process parameters on AZ81 as-cast microstructure were investigated from formation mechanism and influence factors aspect.
澳网公开赛组织者为纪念这场盛事而铸造限量版收藏币于今天早晨公开赛启动仪式上发行
To commemorate the occasion, Australian Open organisers have struck a special limited edition collector coin that was released at the Australian Open 2012 launch this morning.
对铸造钛合金铸态组织的力学性能进行测试。
铸造细化金属的晶粒组织、改善其物理性能。
Forging refines the grain structure and improves physical properties of the metal.
研究了在非稳态条件下，搅拌铸造工艺参数对ZA27合金的凝固过程及初生相组织形貌转变的影响。
The effects of casting process parameters on transformational behavior of primary nondendrite phase and solidification process of ZA27 alloy in stirring are investigated under transient condition.
结果表明，该阀体爆裂属脆性断裂，爆裂系截止阀材质、组织及铸造质量差所致。
It was concluded that brittle fracture of the valve body was the result of poor casting quality.
利用电阻炉加热，采用电子显微镜及图象分析仪，研究了近液相线铸造a 356铝合金在二次加热过程中的组织变化。
Using resistance furnace, the structure of A356 aluminum alloy casted by nearby liquidus semi-continuous was studied during remelting by means of electron microscope and image analysis apparatus.
利用挤压铸造制备了氧化铝纤维增强锌合金复合材料，研究了氧化铝纤维对锌合金复合材料凝固组织的影响。
Alumina fiber reinforced zinc alloy composites were manufactured by squeeze casting, and the effects of alumina fibers on the solidified structures of the zinc alloy composites were studied.
设计了用于含有固相颗粒的高温碱介质中的新型高铬铸造不锈钢的组织及化学成分。
The microstructure and composition of a high chromium cast stainless steel used in high temperature aqueous alkali with solid grains were designed.
实践证明这种立式离心铸造机能改善铸件的内在纤维组织、提高产品的质量和生产效率，降低生产成本。
The practical application proves that the vertical one can improve the interior fiber texture of castings, promote the product quality and productivity, and decrease production cost.
本文研究了浇铸温度、铸型温度、孕育剂和截面尺寸对K 24镍基铸造高温合金的组织和性能的影响。
In this paper the effects of pouring temperature, mold temperature, inoculants, and section size on the microstructure and mechanical properties of casting nickel-base superalloy K24 were studied.
研究了不同固溶处理对双相铸造不锈钢的组织及其耐蚀性能的影响。
The influence of different solid solution treatment on the structure and corrosion resistant property of cast duplex stainless steel was investigated.
前言：研究了石墨砂对镁合金组织和性能的影响，并对铸造过程中产生的“黑点” 缺陷进行了分析。
The influence of graphite sand on the microstructure and mechanical properties of magnesium alloys were studied, and the black spot defeat on magnesium alloy castings were investigated.
研究了稀土复合变质对新型铸造热锻模具钢(CHD钢)组织与性能的影响。
The effects of rare earth (re) complex modification on structure and the properties of a new cast hot-work die (CHD) steel were investigated.
分析了挤压铸造工艺对棒状ZA27合金力学性能及组织的影响。
The influence of squeeze casting technique on mechanical properties and microstructure of bar-shaped ZA27 alloy was investigated.
冷却斜板铸造法是实现半固态铸造成形的一种简便而有效的方法，可以以较低的成本生产具有细小球晶组织的铸件。
The cooling slope casting is a branch of semi-solid casting technique, and it is also a simple and effective method to produce castings with fine globular microstructure at low cost.
本文研究了挤压铸造时不同加压压力对铝合金结晶组织和机械性能的影响。
In this paper, the effects of pressurizing value on aluminum alloy crystal structure and the mechanical properties in squeeze casting process have been studied.
研究了加入稀土和硼细化处理对铸造铅黄铜组织和脱锌腐蚀性能的影响。
The paper presents some results obtained from a research about effects of rare-earth(RE)and boron(B)refining on the microstructure and dezincification corrosion properties of casting lead brass.
设计了一种含硅量较高的新型铸造合金钢，并研究了该合金钢的显微组织及其腐蚀行为。
The chemical compositions of new cast alloy steel with high si content was designed, its microstructure and corrosion behavior were studied.
采用挤压铸造技术制备短纤维增强铝硅合金梯度复合材料，研究了这类材料的凝固组织和耐磨性能。
The short fiber reinforced aluminum silicon alloy gradual composites are manufactured by squeeze casting, and the structures and the wear resistance of the composites are studied.
采用差压铸造工艺，研究垂直缝隙式浇注系统浇注的铝合金硅铸件不同位置的组织和力学性能变化。
Different site microstructure and mechanical properties of aluminum-silicon alloy in differential pressure casting process were investigated. The gate system was adopted vertical slitting gate system.
通过扫描电镜、能谱分析仪和电子探针研究了稀土复合变质剂对离心铸造的高碳高速钢轧辊组织和力学性能的影响。
The effects of RE compound modificator on the mechanical properties and microstructure of high carbon high speed steel used for roller ring were investigated by SEM, EDS and EPMA.
结果表明，不同冷却速度的铸造合金锭具有不同的结晶组织。
Experimental results showed that the crystalline structure of the ingot is different with different cooling rates.
铸件凝固过程中微观组织形成的数值模拟研究是铸造学科前沿的研究课题。
Numerical simulation of the microstructure formation during casting solidification is currently an active area of research frontiers in foundry technology.
研究了热处理工艺对铸态和变质处理铸造高速钢组织与性能的影响。
The results show that the grain is fined, the morphology of reticulation carbides is improved, the hardness and wear resistance of casting high speed steels are also enhanced by modifying treatment.
实验研究了铸造319铝合金在余热热处理工艺下的微观组织、力学性能及旧砂再生处理。
The effects of the remained heat treatment technique on the microstructure, mechanical properties of 319 Aluminum alloy and used sand reclamation were investigated.
实验研究了铸造319铝合金在余热热处理工艺下的微观组织、力学性能及旧砂再生处理。
The effects of the remained heat treatment technique on the microstructure, mechanical properties of 319 Aluminum alloy and used sand reclamation were investigated.
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