粗晶粒的

The results show that the flow stress decreases with increasing deforming temperature and increases with increasing strain rate. The flow stress of the alloy during hot compression deformation can be described by constitutive equation in hyperbolic sine function with a hot deformation activation energy of 196.27 kJ/mol. Partial recystallization takes place in the alloys deformed at a high temperature or at a low strain rate, and large number of dislocations and subgrains are observed in the alloy. The elongated grains observed in the samples coarsen with increasing temperature and decreasing strain rate. Correspondingly, the subgrain size increases and the dislocation density decreases. The main soften mechanism of the alloy transforms from dynamic recovery to dynamic recrystallization.

结果表明：Al-Cu-Mg-Ag耐热铝合金在热压缩变形中的流变应力随着温度的升高而减小，随着应变速率的增大而增大；该合金的热压缩变形流变应力行为可用双曲正弦形式的本构方程来描述，其变形激活能为196.27kJ/mol；在变形温度较高或应变速率较低的合金中发生部分再结晶，并且在合金组织中存在大量的位错和亚晶；随着温度的升高和应变速率的降低，合金中拉长的晶粒发生粗化，亚晶尺寸增大，位错密度减小，合金的主要软化机制逐步由动态回复转变为动态再结晶。

At this moment,that the change of neutral plane position plays a main role in the course of interface bonding,the grain refinement degree heightens whenεincreases. When e is higher than 4.8,the copper with big grains is made up of two kinds of structure regions in the course of deforming,namely fine sub-grains region and high density dislocation region.

此时，异步叠轧中性面位置的改变对界面的复合起到主要作用，变形等效应变的增大使晶粒细化程度变大；变形等效应变ε≥4.8时，粗晶铜在变形过程中有两种组织区域组成，分别为细小亚晶区和高密度位错区。

The results show that the electrodeposited calcium phosphate coating was converted to pure needle-like hydroxyapatite crystals in alkaline solution, the size of crystals become stout with the increase of current density and concentration of salts, the crystals structural was changed to squama structural with elevating the temperature of electrolyte, the volume of coating increase with the increase of quantity of electric charge.

结果表明：电沉积磷酸钙盐涂层经低温碱液处理后得到纯的羟基磷灰石涂层，羟基磷灰石晶体呈针状结构；随电流密度、主盐浓度的增加，晶粒变粗，随电解液温度的升高，晶体发生变化，出现鳞片状结构；涂层质量随沉积电量的增加而增大。

During thermal exposure, some structural changes such interfacial defect migration, noncontinuous coarsening are easy to occur in the alloy with small grain size/average interlamellar spacing. So the small grain size/average interlamellar spacing is generally disadvantageous to thermal stability of lamellar microstructure.

另外，具有较小片层晶粒与平均片层间距的合金经过热暴露以后容易发生了片层界面缺陷迁移，不连续粗化等一些结构变化，不有利于片层组织的热稳定性。

For the heat input of 8kJ/cm and preheated temperature of 60℃, impact toughness value of specimen was highest for the formation of fine grains and a certain quantity of granular bainite which can effectively partite lath bainite.

当采用8kJ/cm的线能量和60℃的预热温度时，粗晶区的晶粒较细，组织由板条贝氏体和一定量的粒状贝氏体组成，由于粒状贝氏体对板条贝氏体的分割作用，使板条贝氏体的长度较小，方向性差，表现的韧性最优越。

Experiment results show that though the grains of the heat-affected zone are seriously coarsened due to the effect of welding thermal cycle, there is no softened zone and the strength of the welded joint doesn′t decrease because the transformed microstructure is different from the original one.

结果表明：经过焊接热循环的作用，虽然热影响区的晶粒明显粗化，但由于所获得的二次组织形态与钢筋原始组织不同，热影响区未发生软化，也不存在焊接接头强度下降的问题。

Experiment results show that though the grains of the heat-affected zone were seriously coarsened due to the effect of welding thermal cycle, there is no softened zone and the strength of the welded joint doesn't decrease because the transformed microstructure is different from the original microstructure of the rebar.

结果表明：经过焊接热循环的作用，虽然热影响区晶粒明显粗化，但由于所获得的二次组织形态与钢筋原始组织不同，热影响区不发生软化，也不存在焊接接头强度下降问题。

The result shows that B combines with N prior to Al at high temperature and brings about coarse particles of BN (about 900 nm), which effectively reduces the amount of fine and dispersive AlN particles, and BN precipitate clinging to MnS precipitation coarsens MnS particles, the pinning of austenite grain boundary is alleviated and the grain growth of ferrite is suppressed.

结果表明高温时B优先于Al与N结合生成粗大的BN粒子(约900 nm)，有效降低了热轧过程细小而弥散的AlN析出量，同时BN依附MnS析出而粗化MnS粒子，减弱了细小弥散析出粒子对奥氏体晶界钉扎以及相变后铁素体晶粒长大的抑制作用。

The principles of dissolution precipitation of second phase particles and autenite grain coarsening were studied and the solubility product of NbC in austenite as function of temperature was evaluated.

经试验确定钢的晶粒粗化温度为 110 0℃，t GC与第二相粒子的全固溶温度之间存在一定的线性关

The liquid sintering process is a complex one, in which there are three overlapping stages: rearrangement, solution-precipitation and Ostwald repining.

存在液相的烧结过程复杂，它包括颗粒重排、溶解－沉淀和晶粒粗化三个相互交叠的动力学过程。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。