半连铸7055铝合金扁锭偏析瘤缺陷分析及工艺优化

韦修勋; 陈愿情; 贾桂龙; 何克准; 谭自盟

doi:10.15980/j.tzzz.2020.11.026

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半连铸7055铝合金扁锭偏析瘤缺陷分析及工艺优化
Defect Analysis of Segregation Tumors in 7055 Aluminum Alloy Flat Ingot and Process Optimization
2020年40卷第11期页码：1290-1293
纸质出版日期： 2020 ，
DOI： 10.15980/j.tzzz.2020.11.026

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[1]韦修勋,陈愿情,贾桂龙,何克准,谭自盟.半连铸7055铝合金扁锭偏析瘤缺陷分析及工艺优化[J].特种铸造及有色合金,2020,40(11):1290-1293.

Wei Xiuxun, Chen Yuanqing, Jia Guilong, et al. Defect Analysis of Segregation Tumors in 7055 Aluminum Alloy Flat Ingot and Process Optimization[J]. Special Casting & Nonferrous Alloys, 2020,40(11):1290-1293.
[1]韦修勋,陈愿情,贾桂龙,何克准,谭自盟.半连铸7055铝合金扁锭偏析瘤缺陷分析及工艺优化[J].特种铸造及有色合金,2020,40(11):1290-1293. DOI： 10.15980/j.tzzz.2020.11.026.

Wei Xiuxun, Chen Yuanqing, Jia Guilong, et al. Defect Analysis of Segregation Tumors in 7055 Aluminum Alloy Flat Ingot and Process Optimization[J]. Special Casting & Nonferrous Alloys, 2020,40(11):1290-1293. DOI： 10.15980/j.tzzz.2020.11.026.

摘要

采用光学显微镜、扫描电镜等手段分析了7055铝合金扁锭的铸造缺陷。结果表明

7055铝合金扁锭存在富含Zn、Cu、Mg元素的偏析瘤

进而影响铸锭品质。分析了偏析瘤的形成机制

提出了相应的工艺优化思路方法

制备出了无明显偏析瘤缺陷的高品质铸锭。

Abstract

The defects of 7055 aluminum alloy flat ingot were analyzed by means of optical microscope and scanning electron microscope. The results indicate that the 7055 aluminum alloy flat ingot has segregation tumor enriched Zn and Cu element

which has a bad influence on flat ingot quality. The formation mechanism of segregation tumor was analyzed

and the improvement measures were put forward to prepare high quality ingot without obvious segregation tumor defect.

关键词

7055铝合金扁锭偏析瘤形成机理工艺改善

Keywords

7055 Aluminum Alloy IngotSegregation TumorsFormation MechanismProcess Improvement

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