摘要
通过对2A11铝合金锻件表面发生断裂部位和正常部位进行低倍、断口、显微组织试样的比较、观察、分析得知产生裂纹的主要原因为组织过烧。
Based on 2A11 aluminum alloy forging fracture surface location and normal sites for low - fold, fracture, microstructure comparison of the sample observation. Analysis indicated that the main reason of cracks is the organization over - burning.
关键词
2A11铝合金
裂纹
过烧组织
2A11 aluminum alloy
crack
over- burning organization
