twin

The twins in NYAB and NGAB crystals were investigated by synchrotron radiation topography and chemical etching method.

采用同步辐射形貌术结合化学腐蚀法，系统研究了ＮＹＡＢ和ＮＧＡＢ晶体中的孪晶结构。

Macro-texture and Micro-twins in Free-standing Diamond Films;

CVD自支撑金刚石薄膜中的宏观织构与微观孪晶

The study of bainite appearance and twins sub-structure in 34CrNi3MoV;

34CrNi3MoV钢贝氏体的形貌及孪晶亚结构

In both primary γ-grains and γ-laths within lamellar α2+γ colonies, the ordinary 1/2<110] dislocations and the true twins created by1/6<112] partial dislocations or pseudotwins created by 1/6<121] partial dislocations were o.

结果表明,2种类型γ相中都能观察到1/2<110]普通位错和1/6<112]或者1/6<121]变形孪晶。

Simpleness of Indexing F.C.C Twin Diffraction Patterns;

f.c.c孪晶衍射花样指标化的简化

Analysis of the Twin Phenomenon in LEC-InP Crystal;

LEC─InP晶体中孪晶现象的分析

A Modified Approach to the Calculation of the Relative Rotation Matrix for Twin Region in the Crystallographhy of Martensitic Phase Transition;

马氏体相变晶体学中孪晶区域相对转动矩阵计算方法的改进

The result show that twinning take place in all the grains in AZ31 magnesium alloy rolled at 300 ℃.

实验结果表明,300℃轧制后的AZ31镁合金薄板材的组织中存在大量的孪晶。

The twinning process in a magnesium AZ31 alloy with initial texture is quantitatively analyzed during plane-strain compression by means of orientation mapping based on EBSD technique.

随形变量的加大及孪晶的增多,86。

However,the current crystal plasticity theory mainly based on that slip accounted for plastic deformation,thus it was limited one applying to predict something responded to plastic deformation caused by both slip and twinning for a material.

现有的晶体塑性理论框架核心主要基于由滑移引起的塑性变形机制,在预测由滑移和孪晶引起塑性变形的材料力学响应方面还不够完善。

The defects includ twin crystal and hole.

用ＳＥＭ方法观察分析了ＣＶＤ金刚石薄膜表面的缺陷形貌和结构，直观的两种缺陷为孪晶和孔洞。

Flocculation and coalescence of crystal nuclei lead to twin crystals and further to form T-grains.

晶核的絮凝和聚结导致了AgBr孪晶的产生,从而进一步形成T颗粒,本文综述了最近在这方面的研究结果,并讨论了T颗粒形成的机理;同时还就物理成熟条件对T颗粒尺寸和形状的影响进行了讨论。

The results show that solid solubility was inereased and twin crystal was found in heat effect area.

基体与熔覆层间的热影响区内，基体元素的固溶度明显增加，位错能降低，在热影响区还发现了孪晶产生。

The results show that, most annealing twin microstruc- ture distribute in austenite matrix of annealed sample, and the deformation twin formed during tensile strain make the sample attain high strength and high plasticity.

结果表明,轧制后退火处理钢板的室温组织为奥氏体基体中存在大量的退火孪晶,在拉伸变形中形成的形变孪晶使产品获得了高强度、高塑性。

Microstructure characteristics of adiabatic shear deformation and deformation twins on both sides of QBe2 and T2 were investigated by means of optical microscope and SEM electronic backscatter diffraction techniques.

结果表明:由于T2和QBe2在物理性能、力学性能和热学性能上的差异,在爆炸载荷条件下只在QBe2中产生绝热剪切带,并且绝热剪切带内分布有十分细小的等轴晶;带内晶粒取向基本相同,带与带之间基体中的晶粒取向也基本相同,且两者还存在较大的取向差;爆炸冲击加载后,QBe2和T2两侧均产生了形变孪晶。

A new type of intersection mechanism of deformation twins with α2 plates in γ TiAl based alloy deformed at room temperature was