双向轧制能进一步破碎钽板粗晶铸态组织。
Double-directionally rolling could fragmentate the coarse grain further.
枝晶间距是重要的铸态组织参数。
Dendrite arm spacings is one of the important as-cast structural parameters.
双向轧制能进一步破碎钽板粗晶铸态组织。
Double-directionally rolling could fragmentate the coarse gr…
对铸造钛合金铸态组织的力学性能进行测试。
金属铸态组织细化的关键是获得大量细小等轴晶。
The key to fining the structure of ingot casting lies in the formation of a number of fine equiaxed crystal grains.
分析铸态组织后，将试样进行不同程度的均匀化处理。
The samples were heated in different extent of homogenization after analyzing the as-cast microstructure.
本文研究了多元合金对高铬白口铸铁铸态组织和性能的影响。
The effect of multi element alloying on the microstructure and properties as cast of high chromium white cast iron has been studed.
对ZL 111铝合金在近液相线的温度保温后的铸态组织进行了研究。
The microstructure evolution of ZL111 by heat holding above the liquidus temperatures was investigated.
塑性加工能大大改善白口铸铁的铸态组织，这将扩大白口铸铁的使用范围。
The worked metals have been improved greatly in structure than cast state. This may widen the use of white cast iron.
目的观察贵金属烤瓷合金铸态组织成分偏析情况，为该合金性能研究提供理论依据。
Objective to study the microsegregation phenomenon in as-cast micro structure of a precious metal ceramic alloy so as to provide theoretic basis for study on this kind of alloy.
根据结晶及相变动力学理论，建立了预测球墨铸铁件铸态组织及机械性能的数学模型。
Mathematical model of the microstructure as well as the mechanical properties of spheroidal graphite iron casting was researched on the basis of solidification and thermodynamics theories.
研究了铸锭表面质量和内裂纹发生情况，考察了电磁场频率和强度对铸态组织的影响。
The surface properties, inner cracks of billets and the effect of electromagnetic frequency and intensity on as-cast microstructures were investigated.
铸态组织中存在不同位向的孪晶，大孪晶中有许多平行的二次孪晶，沿孪晶界诱发微裂纹；
There are different direction twins in its casting structures, and parallel second twins emerge in one big twin where micro cracks appear along twin boundary.
提高铁液的碳当量、增加孕育剂量和降低铸态组织的渗碳体数量，均有利于增加石墨球数量。
Adding of carbon equivalent and the amount of inoculant can reduce the amount of as cast carbide and increase the number of nodular graphite.
添加稀土元素之后 ，镁铝锌合金的铸态组织得到细化 ，并在显微组织中形成铝的稀土相 ；
The whole as cast microstructures of the alloy were refined and RE containing Al phase was formed with RE addition. The ageing peak value was slightly raised.
结果表明：热处理后组织与铸态组织相比，碳化物分布趋于弥散细小，冲击韧度和硬度都有较大的提高。
The results indicate that, compared with those of the as-cast Cr28, carbides disperse more uniformly and finer, and the hardness and impact toughness increase significantly.
研究了不同的型壳保温温度对一种铸造单晶高温合金dd 98铸态组织、热处理组织和持久性能的影响。
Effect of mould holding temperature on the microstructure and mechanical properties of single crystal superalloy DD98 have been investigated.
结果表明，试棒中出现残余铸态组织、集中夹杂物和显微缩松等缺陷是造成这两类力学性能不合格的原因。
These factors resulted that two kind of ZG230-450 specimen which mechanical property is ineligible. The prevention method were also proposed to avoid similar events.
通过低倍及微观检验观察，将发生低温开裂的铸坯与正常铸坯进行微观组织对比，找出铸态组织中存在的缺陷。
Some defects have been found in the slab structure by comparison with normal slab in microstructure through microcosmic test.
当硼含量大于0 . 0 10 %时，铸态组织中出现了明显的网状或断网状碳化物，冲击韧性下降幅度较大。
When boron content surpasses 0.010 %, there is some clear continuous carbide network or discontinuous carbide network in the microstructure, as a result, the impact toughness declines greatly.
实验采用旋转型电磁搅拌器。在相似条件下，液态金属在电磁搅拌下凝固与不经电磁搅拌凝固的铸态组织进行对比。
An electromagnetic stirrer of the rotation type was employed under similar conditions, the as-cast structure of metals solidified with and without electromagnetic stirring were compared.
研究了AZ31合金的铸锭组织及其退火工艺，为AZ31镁合金由铸态组织直接塑性变形提供了一定的参考依据。
As-cast microstructure of Mg alloy AZ31 ingot and its annealing technology have been researched hence certain reference for direct plastic deformation from as-cast microstructure of Mg alloy AZ31.
本文研究了低膨胀高温合金GH907、GH909铸态组织中偏析的性质，偏析对合金组织的影响，以及消除偏析的方法。
This paper introduces the casting precipitation properties, their effects on the alloy microstructure and the methods to eliminate the precipitation of the Low-expansion superalloy GH909. and GH907.
对热型连铸锌铝合金定向凝固线材的铸态及热处理组织进行了观察、分析和讨论。
The as cast and heat treatment microstructure of ZA alloy rod directionally solidified by continuous casting has been analyzed.
用XRD和SEM分析了铸态及快淬态合金的相结构，并观察了合金的微观组织形貌。
The phase structure and microstructure of as-cast and quenched alloys were analyzed and observed by XRD and SEM.
该铸态贝氏体钢通过合金化和控制冷却速度的方法，不需热处理而在铸态下直接得到贝氏体组织和所需性能。
The new bainitic steel formation and its required characteristics were obtained directly in the casting phase without any heat treatment, by the way of alloying and controlled cooling.
熔体处理对罐用铝材铸态的微观组织结构产生了明显的影响。
The effect of melt-treatment technology on the as-cast microstructure of the sheet is remarkable.
加铜的球墨铸铁无论铸态或热处理都引起了组织及性能的变化，这种改变拓宽了球墨铸铁的应用范围。
Adding copper into nodular iron caused change of its structure and properties both in as - cast as well as heat - treated condition that expanded application scope of nodular iron.
所研究的铸态贝氏体钢是通过合金化和控制冷却速度的方法在铸态下直接得到贝氏体组织的，不需热处理即可获得所需的组织和性能。
The as-cast bainite steel studied in this paper could obtain bainite directly in the as-cast condition through alloying and controlling the cast cooling rate without heat treatment.
所研究的铸态贝氏体钢是通过合金化和控制冷却速度的方法在铸态下直接得到贝氏体组织的，不需热处理即可获得所需的组织和性能。
The as-cast bainite steel studied in this paper could obtain bainite directly in the as-cast condition through alloying and controlling the cast cooling rate without heat treatment.
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