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2A12-T451板材表面黑斑缺陷的研究

Stody for the Black Spot Defects on the Surface of 2A12-T451 Plate

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【作者】 邵玉田陈丽君王美琪

【Author】 Shao Yutian; Chen Lijun; Wang Meiqi(Northeast Light Alloy Co., Ltd., Harbin, 150060, China)

【机构】 东北轻合金有限责任公司!黑龙江省哈尔滨市150060

【摘要】 对ZA12-T451板材经铬酸阳极氧化后局部出现黑斑缺陷进行了试验研究。结果表明,该缺陷与强化相析出有关,金相与电镜观察证明,该区域是析出质点富集区经氧化形成的。

【Abstract】 The examination was made on the black spot defects which occurred on the local areas of the surface of 2A12-T451 plate after anodized in chromic acid. It was demonstrated that the defects are related to the precipitation of hard particles. The metalurgraphic and electron microscopic inspection found that the black spot defects are formed by the oxidation of particle enriched zone.

  • 【文献出处】 轻合金加工技术 ,LIGHT ALLOY FABRICATION TECHNOLOGY , 编辑部邮箱 ,1999年08期
  • 【分类号】TG115
  • 【被引频次】1
  • 【下载频次】50
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