结果表明，表面熔化处理后的硬化层的硬度梯度平缓，耐磨性高。

The results showed that the hardening layer has better hardness gradient and high wear resistance.

youdao

随着梯度结构层数的增加，应力缓和效果增强，但增强的趋势由明显变为平缓。

With the increase of the gradient layer number, the effect of thermal stress mitigation is more obvious, but the trend becomes smooth.

youdao

对材料进行分形研究，表明梯度多孔支架内部无明显界面，孔径过渡平缓。

Fractal dimension study showed that the transition of pore size in the gradient scaffold was smooth without obvious interface.

youdao