The analyzed results indicate that the twinned area fraction increases gradually with the increment of the strain,the twinning is main deformation mechanism,its stress-strain curve is concave,for the sample with 90° angle between compression a.
结果表明:应变率约为1 200 s-1,压缩方向与板面法向成90°时,孪晶的面积分数随应变量的增大逐渐增加,孪生是主要变形机制,其曲线为凹型;压缩方向与板面法向成45°及0°时,其塑性变形以位错滑移为主,曲线形状分别为近似线型和凸型;应变率约为2 800 s-1,压缩方向与板面法向成90°时,孪晶面积分数迅速增加,大多数晶粒取向发生了改变,有利于滑移,其曲线由较低应变率的凹形变为凸型。
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。