2A50铝合金棒材机加工零件上缺陷的分析  

Analysis on defect essence of part worked with 2A50 aluminium alloy rod

作　　者：李明波[1] 聂善峰[1] 苏玉洁[1] 李丹[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2008年第12期26-27,50,共3页Light Alloy Fabrication Technology

摘　　要：我公司为某用户生产的2A50铝合金棒材,用户认为有"夹杂"缺陷,我们对缺陷进行宏观组织和显微组织观察及分析,得知其缺陷并不是"夹杂",而是机加工零件上破坏金属表面的腐蚀斑。The customer thinks that 2A50 aluminium alloy rod and bar supplied by our company has inclusion defect. The defect has been tested through observing and analyzing of macrostructure and microstructure. It follows that the defect is not＂inclusion defect＂, is the corrosion spot damaging the metal surface.

关 键 词：2A50铝合金 棒材 机加工零件 电化学腐蚀 夹杂 

分 类 号：TG333[金属学及工艺—金属压力加工]