粗晶粒的

The microstructure in the heat--affected zone consists of coarse bar-shape recovery grain, and that of the thermo-mechanically affected zone exhibits bent band-like character, but the deformation degree at the advancing side is bigger than that at the retreating side. Microstructures in TMAZ are also recovered, and the amount of recovery grain at retreating side is more than that at advancing side.

热影响区组织发生回复和粗化反应，形成粗大的棒状回复晶粒；热机影响区组织发生弯曲变形，但整体上仍保留带状组织形貌，前进侧热机影响区组织变形程度高于后退侧，该区同时还发生回复反应，且后退侧热机影响区内的回复晶粒数量多于前进侧。

The result showed that toughness of coarse-grain zone in X70 grade steel pipe HAZ was weak.Coarse grain,granular bainite,high binate and other unbalance low temperature variation result in quantity increasing. In addition to,impact toughness of coarse grain zone decrease with the t8/5 increasing.

结果表明：粗晶区是X70级管线钢热影响区中韧性较差的区域，粗晶区韧性恶化主要是晶粒粗化以及粒状贝氏体、上贝氏体等非平衡低温转变产物数量增多造成的，且粗晶区的冲击韧性随着 t8/5 的增加而降低。

The conventional method of preparing fine cemented carbide is to reduce and carburize fine W and WC powder at low temperature, then inhibitors,such as TaC, Cr3C2 and VC, are usually added into the powder to prevent the WC grains from coarsening during sintering.

制取这种微晶硬质合金通常的方法是，用还原和碳化方法，首先得到细W粉和WC粉，然后加入TaC、Cr3C2和VC等晶粒长大抑制剂，并且通常是将这些抑制剂加入到W粉或WC粉中，防止WC晶粒在烧结时长大变大变粗。

This heat treatment can prevent the formation of large Sr-Ca-Cu-O particles which can form in tape during isothermic heat treatment of high temperature and can release 30〓 phase in the tape.

发现在银套Bi-Pb-Sr-Ca-Cu-O预烧粉末轧制带热处理中37〓相晶粒以（001）晶面平行带面生成；等温高温处理产生含粗大Sr-Ca-Cu-O相颗粒的组织；升温处理可以避免形成Sr-Ca-Cu-O粗粒并消除30〓相。

Homogenization treatment before the extrusion coarsened the grain size and reduced the tensile strength and yield strength.

挤压前均匀化热处理使挤压态合金的晶粒尺寸粗化，拉伸强度和屈服强度降低。

These alloys will maintain an extremely fine grain size at temperatures well beyond their recrystallization temperature, up to the temperature where the second phase finally dissolves or coarsens, which allows grain growth to proceed.

这些合金将维护极端微粒的大小在温度充分超过他们的再结晶温度，由温度决定，第二个阶段最后溶化或变粗，允许晶粒生长进行通常，二种锻炼的脾气是可利用的：光锻炼，轻微地执行在温度在再结晶温度之上和软绵绵地锻炼，执行几百程度更高，在温度在迅速晶粒生长开始的点之下。

The microstructure of hardened layer and formation mechanism were investigated.The microstructure of hardened layer consist of the completely hardened region and the transition region.The completely hardening region is composed of fine acicular martensites,residual austenites and a few dot-like carbonides.From surface to bottom in the hardened layer,the microstructure varies from fine to coar...

结果表明：采用适当的磨削参数可满足该钢所要求的淬火温度，进而获得适宜的淬硬层显微硬度和强化层深度；磨削淬火层由完全硬化区和过渡区组成；完全硬化区主要由细小针状马氏体组成，从表面到里层，组织形貌呈现&细→粗→细&的变化规律，其形成机理是热-力耦合作用影响磨削淬火过程中的奥氏体晶粒大小及其位错密度，并将直接影响转变后的马氏体组织形貌。

The results indicate that growth of TiN grains is blocked by doped Cu and Zn and TiN grain size decreases with increasing Cu and Zn concentration. In contrast, high Cu and Zn content induces coarse structure due to the growth of copper grains.

结果表明，掺杂的Cu、Zn可以阻止TiN晶粒生长，随掺杂量增加TiN晶粒细化， Cu、Zn含量比较高时由于金属相长大而使膜层组织粗化。

Refining grain behavior of the heat affected zone of E36 high strength low alloy steel was studied, when E36 steel was welded by three wires submerged arc welding with 110 kJ/cm large heat input .

大热输入焊接时，氧硫复合物诱导热影响区的晶内铁素体形核，并促进晶内铁素体的感生形核，晶内铁素体及其感生晶内铁素体使热影响区粗晶区的晶粒细化，确保焊接热影响区粗晶区的强度与韧性不降低。

The results show that the plasticity zone and dynamically quiescent layer become fine equiaxed recrystallisation under the thermo-mechanical effect, the grains in the heat-affected zone grow up because of the effect of friction heat. When the rotation speed is 2 500 r/min and the welding time is 12 s, good joint is achieved, and the tensile shear strength of the joint reaches 9.24 kN. The tensile shear strength of spot increases with increasing tool rotation speed, with increasing welding time, the strength increases first, while then reduces. The microhardness of plasticity zone is high, but is slightly lower than that of the base metal, the minimum value of microhardness is in the heat affected zone. When the energy input of joint is high, the fracture type of spot is mode Ⅰ, and the tensile shear strength is high; on the contrary, when the energy input of joint is less the fracture type of spot is mode Ⅱ, and the strength is low.

结果表明：塑性区和动态静止层的晶粒在热和力作用下发生动态再结晶形成细小的等轴晶，热影响区的晶粒在摩擦热作用下长大变粗；搅拌头旋转速度为2 500 r/min，焊接时间为12 s时，可以获得力学性能较好的焊点，焊点的剪切强度达到9.24 kN；焊点的剪切强度随搅拌头旋转速度的增大而增大，随焊接时间的延长先增大后减小；塑性区的显微硬度较高，但略小于母材，接头显微硬度的最小值分布在热影响区；焊点热输入量较多时，接头为Ⅰ型断裂，焊点的剪切强度较高；焊点热输入量较少时，接头为Ⅱ型断裂，焊点的强度较低。

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 。