The microstructure of aluminized layer, hardness distribution and microstructure of internal oxidation layer were investigated.
对渗铝层的显微组织、内氧化层的硬度分布及显微组织进行了初步分析。
The unsuitable carbonitriding process, internal oxidation, over deep depth of carbonitrided layer and crust like C N compound on the surface are the main reasons to cause fracture.
碳氮共渗工艺选择不当，共渗层过深，表面出现壳状碳氮化合物、内氧化等缺陷组织是造成其断裂的主要原因。
The external oxidation will lead to chromium dilution in the surface layer of alloy, and the internal oxidation will decrease the strengthening effect of solution and aging treatment.
外氧化使合金表面贫铬；内氧化将降低合金固溶时效强化效果。
External oxidation layer didn't found to have obvious influence on iron loss, the largest influence came from internal oxidation.
发现表面氧化对铁损没有明显影响，内氧化层对铁损影响最大。
External oxidation layer didn't found to have obvious influence on iron loss, the largest influence came from internal oxidation.
发现表面氧化对铁损没有明显影响，内氧化层对铁损影响最大。
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