孪晶界阻碍位错运动导致高的加工硬化率；
The twin boundaries act as strong obstacles to the dislocation motion, so lead to higher strain-hardening.
应变诱发马氏体首先在原奥氏体晶界和孪晶界形核。
These lath martensite first nucleates in parent austenite intergranular and twin boundary.
研究人员发现一类被称作共格孪晶界（CTB）的特殊的晶界。
The researchers observed that a specific type of boundary called a coherent twin boundary (CTB) has a double role in fracture mechanism.
两叶片的结合部位类似于孪晶界，不是两个马氏体片相遇的接触部位。
The joining plane of two plates is like the twin boundary, but it is not a bond plane for the two martensite plates to meet with each other.
拉伸载荷与孪晶界不垂直时，屈服应力降低，变形方式则以去孪晶为主。
When the tensile load is not perpendicular to the twin boundary, the yield stress decreases and the deformation is mainly detwinning.
金属和合金中的面缺陷包括晶界、亚晶界、孪晶界、相界、堆垛层错、外表面等。
The plane defects of metals and alloys include grain boundary, sub-grain boundary, twins grain boundary, phase boundary, stacking fault, outward surface, etc.
焊后，大量M6C在晶内弥散析出，在晶界和孪晶界上不连续析出，原有的碳化物长大。
After welding, a large volume fraction of tiny M6C precipitates in the matrix is discontinuously dispersed in the grain boundaries and twin boundaries, and the original carbides become bigger.
铸态组织中存在不同位向的孪晶，大孪晶中有许多平行的二次孪晶，沿孪晶界诱发微裂纹；
There are different direction twins in its casting structures, and parallel second twins emerge in one big twin where micro cracks appear along twin boundary.
变形量为40%时，轧板的晶粒形貌发生了显著变化，晶粒变得细小，晶界清晰，第二相完全消失，并出现孪晶组织。
At the time of deformation reached 40%, the appearance of the crystal changed greatly: the size refined, boundary turned clear, second phase disappeared and twin crystal structure appeared.
变形量为40%时，轧板的晶粒形貌发生了显著变化，晶粒变得细小，晶界清晰，第二相完全消失，并出现孪晶组织。
At the time of deformation reached 40%, the appearance of the crystal changed greatly: the size refined, boundary turned clear, second phase disappeared and twin crystal structure appeared.
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