microporosity

Microporosity in thermite weld joint consiste of blow hole and shrinkage cavities.

氧或硅含量过高形成氧化物或硅酸盐;

The microporosity morphology and formation mechanism of cast magnesium alloy was investigated with software for analysis percentage of microporosity and field scanning electron microscopy.

铸组织形态形成机理符气体形成模型和溶质再分配理论,从而验证氢气析出形成显气机理。