metallic inclusion

基本解释

It was revealed that: inhomogeneous distribution of the non-metallic inclusion and excessive bainite and tertiary cementite is the cause of cracking.
分析结果表明，铸锭中分布不均匀的非金属夹杂物和组织中过量分布于晶界的贝氏体和三次渗碳体是导致冷镦开裂的原因。
The removal of non-metallic inclusion during remelting occurred mainly in stages of formation of dropets on the consumable electrode tip and dropets falling through the slag.
电渣重熔过程中非金属夹杂物的去除主要发生在自耗电极端头熔滴形成期以及熔滴滴落穿过熔渣层阶段。
The results show that the fatigue fracture is caused by exceeded-quota sulphur and non-metallic inclusion enrichment in crack initiation, which induces stress concentrator in application.
表面裂纹源处存在夹杂物富集现象，在使用时引起应力集中，从而导致其疲劳断裂。