晶内的

The beneficial effects of homogeneously distributed boron inside grain on lowering the energy of antiphase boundary and improving brittleness are weakened.

低于此临界浓度，硼在晶内均匀分布；高于此临界浓度，硼在晶界上偏聚，上述硼在晶内均匀分布降低反相畴界能的有益作用被削弱。

Ti composite oxide could promote the formation of acicular ferrite and microstructure of coarse-grain HAZ of Ti treated steel consists of ferrit in grain boundaries, ferrite side plate and large amount of intragranular acicular ferrite.

复合Ti的氧化物具有促进晶内针状铁素体形核的能力，焊接粗晶区主要由晶界铁素体、少量的侧板条铁素体和大量的晶内针状铁素体组成。

Mechanisms of heat affected zone liquation and liquation cracking in GH150 alloy were investigated by using varestraint test and hot ductility test in conjunction with the differential thermal analysis and optical, scanning electron microsopy. On heating,γ/C liquation take places in the HAZ above 1250℃. When the temperature reaches 1353- 1375℃, a large amount of liquid particles due to initial melting can be observed within the grains near the fusion boundary. On cooling,γ/C eutectic and γ/ Laves phase eutectic take place at 1273 and 1200℃ respectively.

采用可变拘束试验、热塑性试验、差热分析、光镜与扫描电镜观察，研究了GH150合金焊接热影响区液化及液化裂纹形成机制加热过程中温度高于1250℃的热影响区由于γ／C共晶产生液化，在温度达到1353℃（固相约至1375℃的近维区，晶内出现大量液化点冷却过程中温度在1273和1200℃时形成γ／C共晶和γ／Laves相共晶。

And at 600℃,in addition to needle carbide,there was pearlite.

在500℃时效处理时，沿晶界形核并向晶内生长的针状碳化物与母相奥氏体之间的位向关系和在晶内析出的针状碳化物的不同；以及在晶内析出的针状碳化物可以交叉生长。

Using the analysis of differential scanning calorimetry, three exothermic peaks were found which were mainly attributed to crystallization of α-(373℃), relaxation of internal strain (410℃) and crystallization of the residual amorphous matrix (540℃) respectively.

对机械合金化形成的非晶〓的DSC测量表明：在40℃到700℃范围内，有三个位于373℃，417℃和540℃左右的放热过程，分别α-相的结晶，内应变的降低和残余非晶相的晶化。

SEM and TEM observations indicate that the prior austenite deformation not only refines the allotriomorphic ferrite grain but also promotes the nucleation of intragranular ferrite, both of which in turn contribute to the refinement of granular bainite cluster including its ferrite platelets and MA islands.

SEM和TEM观察表明，奥氏体形变不仅细化仿晶界型铁素体，而且促进先共析铁素体在原奥氏体晶内形核，从而有利于细化粒状贝氏体晶团及其内部的铁素体片条和MA岛。

Many nanotwins were formed in this triangular region. HREM observations showed that nanotwinning dislocations were nucleated at noncoherent twin boundaries with the local stress concentration, and the nucleation is related to the dislocation dissociations at the boundary ledges. The proceeding of these nanotwins is the homogenous shears of 1/6 [11〓] twinning dislocations, which is that the trailing 1/6 [112] twinning dislocations repel the leading twinning dislocations to proceed in the (111) planes. Therefore, twinning dislocations at the twin tip appear to be on one side of twin, forming a noncoherent twin boundary with a semilenticular shape.

在此三角区域内发现许多纳米孪晶的存在，通过高分辨电镜手段观察到纳米孪晶中的孪生位错是在具有原位应力集中的非共格入射孪晶界上形核的，纳米孪晶的形核与界面的台阶位错及其位错分解反应有关，纳米孪晶的行进是1/6[11〓]孪生位错均匀切变机制，即每一个（111）孪生面上对应一个孪生位错，其中拖尾的1/6[11〓]孪生位错将会推动领先的孪生位错行进，于是在形变孪晶头部位置的孪生位错排列常常出现在形变孪晶的一侧界面，形成一个半透镜状的非共格孪晶界。

After the addition of carbon, the microhardness in the grain boundary is about 150 MPa higher than that in the grain. The fracture type of pure Mo is intergranular fracture, the grain boundary strength of Mo-C alloy is strengthened due to the addition of carbon and the fracture type is changed to transgranular fracture, transcrystalline fracture and a large number of cleavage planes and steps are observed on the bending fracture surface. But if the carbon content is too high, the carbide precipitation will be severe at grain boundaries and is deleterioated to the ductility of the alloy.

添加碳后，合金的晶界显微硬度比合金的晶内显微硬度高150MPa左右；纯钼的断裂方式以沿晶断裂为主，添加碳后，由于合金的晶界强度得到提高，合金的断裂方式变成以穿晶断裂为主，断口上有大量的解理面，具有明显的河流状花样和解理台阶，且塑性越好的断口，撕裂岭也越多；当添加的碳含量偏高时，在晶界处产生了大颗粒的碳化物，这种大颗粒的碳化物会降低合金的塑性。

The microstructure of plasma spraying coating doping nanometer Al2O3/ZrO2 was complicated. The particular structure include cylindrical micrometer crystal enwraped in putamina consist of nanometer ones, unmelted ZnO2 partical studded in the crystal.

纳米掺杂等离子喷涂AI2O3/ZrO2涂层的微观组织形貌复杂，存在着纳米柱状晶薄壳内包裹着微米级柱状晶、未熔化的ZrO2陶瓷粒子嵌镶在晶体内部的独特晶内结构。

The results show that from the interface to surface the microstructure of the cladded coating is composed of plane grains,tiny grains and fine dendritic grains. The two main compositions of Ni and Cr homogeneously distribute in the section.

结果表明，熔覆修复层的显微组织从界面往上依次由平面晶、细晶层和中部细小的树枝晶构成，主要元素Ni和Cr在截面内均匀分布，原有Cr层与熔覆层内的Cr元素呈连续状，构件修复区以外的铬层与基体的结合未受激光熔覆的影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了