中文摘要：

缺点的基本性质(自我空隙并且空缺) 在电子消息传输方式，在单轴的张力的紧张下面的铁与原子模拟方法被调查。他们的形成和迁居精力在二个不同计算盒子中在单轴的张力的紧张的方向上显示出不同依赖。在 box-1，沿着方向的单轴的张力的紧张影响哑铃的形成和迁居精力，但是稍微影响一个单个空缺的迁居精力。在 box-2，沿着方向的单轴的张力的紧张影响空缺和 interstitials 的形成和迁居精力。特别，当，它的迁居方向沿着这些方向是一样或结束到紧张方向时，一个哑铃有一个更低的迁居精力，一个空缺有一个更高的迁居精力。所有这些结果显示单轴的张力的紧张能在材料导致各向异性的形成和简单缺点的迁居精力。

英文摘要：

The basic properties of defects （self-interstitial and vacancy） in/3CC iron under uniaxial tensile strain are investi- gated with atomic simulation methods. The formation and migration energies of them show different dependences on the directions of uniaxial tensile strain in two different computation boxes. In box-1, the uniaxial tensile strain a/ong the （1005 direction influences the formation and migration energies of the （1105 dumbbell but slightly affects the migration energy of a single vacancy. In box-2, the uniaxial tensile strain along the 〈111〉 direction influences the formation and migration energies of both vacancy and interstitials. Especially, a 〈110〉 dumbbell has a lower migration energy when its migration direction is the same or close to the strain direction, while along these directions, a vacancy has a higher migration energy. Aft these results indicate that the uniaxial tensile strain can result in the anisotropic formation and migration energies of simple defects in materials.