dfz怎么记

The in situ tensile test under TEM for thin foil specimen of brass showed that a lot of dislocations could be emitted from a loaded crack tip and a dislocation free zone ( DFZ) could form after reaching equilibrium.

黄铜薄膜试样在透射电镜中原位拉伸观察表明，在平衡条件下加载裂尘发出的位错钝化成无位错区，它是一个应变很高的异常弹性区。

It is found that Ge not only can promote the out-diffusion of oxygen and form wider DFZ in Ge-Doped CZSi wafer than that in the control sample, but also can suppress the formation of precipitation.

发现直拉硅中杂质锗的存在可促进氧的外扩散，抑制氧沉淀的发生并可形成较宽的清洁区。

The effect of cyclic loading makes the plastic zone hardening ( or softening), which raises the stress level in Dislocation-Free Zone ( DFZ) and the value of-integral, and may lead to fracture.

循环载荷使得裂纹尖端的塑性区循环硬化/软化，这使无位错区的应力和裂纹尖端区域的J积分的值升高，从而有可能导致开裂。