查询词典 dislocations

Screw dislocations with b=[1/4000 00], [1/200000], [3/400000], [100000] and edge dislocations with b= [1/2 00000] are determined in Al-Co-Ni decagonal quasicrystal.

发现了柏格矢大小为b＝[1/400000]，[1/200000]，[3/400000]和[100000]的螺位错和b＝[1/200000]的刃位错。

It was found that there exist prismatic dislocations, stacking faults ,array of dislocations and dislocation network.

研究发现金刚石中存在层错、棱柱位错、位错列和位错网络等晶体缺陷。

The fracture mechanism of totally austenite TWIP steel (steel 5#) is: the moving of dislocations is blocked by twin boundary during deformation. Micro-voids nucleate at boundary of deformation twins by the interaction between deformation twins and dislocations. Micro-voids are formation, growth, coalescence and break by the stress concentration during deformation.

全奥氏体的TWIP钢（如5＃钢）的断裂机制为：形变过程中位错的运动受孪晶界的阻碍，形变孪晶与位错的交互作用使微孔形核于孪晶界处，应力集中使微孔长大、聚合直至材料发生断裂。

The fracture mechanism of the whole austenite TWIP steel (steel 5#) was that the moving of dislocations was blocked by twin boundary during deformation, the microvoids nucleated at boundary of deformed twins by the interaction between deformed twins and dislocations, the microvoids grew, got together and broke by the stress concentration during deformation.

全奥氏体的TWIP钢（2＃钢）的断裂机制为：形变过程中位错的运动受孪晶界的阻碍，形变孪晶与位错的交互作用使微孔形核于孪晶界处，应力集中使微孔长大、聚合直至材料发生断裂。

The dislocations in LBO crystal are investigated by whitebeam synchrotron radiation topograph and various dislocations are identified.

首次观察到LBO晶体中包裹物在同步辐射白光形貌像中的异常衬度，根据包裹物的结构，对其异常衬度的形成提出了定性解释。

It showed that deformation twins had formed in 2Cr17Mn15Ni2N and 304L targets, despite the peak pressures induced by LSP were no more than one third and half of the critical stress for twinning of corresponding targets. Different types of microbands and dislocations configurations were observed in the two targets. The features of dislocations slip deformation induced by ultrahigh strain rate followed FCC metallic crystallology. No deformation martensite phase was discovered.

结果表明，激光诱导的峰压不到2Cr17Mn15Ni2N和304L不锈钢靶材孪生应力的1/3和1/2时即有形变孪晶形成；两种奥氏体不锈钢中出现不同的显微带和位错形貌特征；高应变率加载下奥氏体不锈钢位错滑移形变符合面心立方金属晶体学关系；没有发现形变诱发马氏体相。

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。

To the materials , there are rare dislocations in their crystal grains; to the unstrengthened samples, there are many dislocations which well-distributed in their grains; and to the strengthened samples, there are a large amount of dislocations scattered along their grain-boundaries, that is, the dislocations form a dislocation wall which is of great dislocation density.

又经透射电子显微镜对各种样品微观组织结构进行分析，发现其位错组态明显不同：①原材料样品中的晶粒内仅存在有非常稀疏的位错线；②未经过强化的样品中可观察到大量均匀分布的位错，分布密度相对较高；③在经过低载锻炼强化的样品中，可观察到大量的晶粒内在晶界附近聚集着一道密度很高的位错墙。

In both primary γ-grains and γ-laths within lamellar α2+γ colonies, the ordinary 1/210 dislocations and the true twins created by1/612 partial dislocations or pseudotwins created by 1/621 partial dislocations were o.

结果表明，2种类型γ相中都能观察到1/210普通位错和1/612或者1/621变形孪晶。

The formulas of the statistical average radius of wave-front circle edge dislocations had been developed for the coaxes beams that had different beam diamantes and crossbeams in the cases that the averaging time was shorter t

标 签 激光传输波前位错短期平均大气湍流高斯谢尔光束 Laser propagation Wave front Dislocations Short-term averaging Atmospheric turbulence Gaussian-Shell beam

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

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如果有任何问题，你可以随时联系我。