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金相微观检查可以观察铝及铝合金在供应状态各组成相的分布和特征,从而确定加工变形量,并可检查有否过烧和微裂纹的出现;确定热处理质量;检查固溶处理后强化相的溶解是否充分、有否过烧和显微裂纹的存在,并分析在随后的时效过程中次生相的集聚和长大情况。通过微观分析还可以寻找废、次品产生的原因和防止的方法等。
Metallographic micro-inspection can observe the distribution of aluminum and aluminum alloy in the supply phase composition and characteristics of the processing to determine the amount of deformation, and can check whether there is over-burning and the appearance of micro-cracks; determine the quality of heat treatment; check after solution treatment strengthening Phase dissolution is sufficient, there is over-burning and the presence of micro-cracks, and analysis of the subsequent aging in the secondary phase aggregation and growth situation. Through micro-analysis can also look for waste, the causes of defective products and methods to prevent such.