STUDY ON THE FORMATION OF DEFECTS IN DURALUMIN FORGINGS

STUDY ON THE FORMATION OF DEFECTS IN DURALUMIN FORGINGS

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摘要 The mechanism of forming defects in 2024. 7075 series aluminium alloy forgings has been studiedby means of metallography. EDAX. SEM etc. The defects are divided into two types by their appearance.needle-shaped and flake-shaped. The mechanism of them forming is discussed. It has been testified that thedefects result from hydrogen or oxide film. The defects can be prevented by controlling the hydrogen contentin the melt and keeping oxide film from involving. The mechanism of forming defects in 2024. 7075 series aluminium alloy forgings has been studiedby means of metallography. EDAX. SEM etc. The defects are divided into two types by their appearance.needle-shaped and flake-shaped. The mechanism of them forming is discussed. It has been testified that thedefects result from hydrogen or oxide film. The defects can be prevented by controlling the hydrogen contentin the melt and keeping oxide film from involving.

作者 Zhang Shenghua Zhu Xuxia Lin Gaoyong Hu Zehao(Department of Materials Science and Engineering. Central South University ofTechnology, Changsha 410083, China)Deng Dongqiao Yan Wenming Wu Shigao Chen Yishu(Southwest Aluminium Fabrication Plant, Chongq

出处《Journal of Central South University》 SCIE EI CAS 1997年第1期16-19,共4页 中南大学学报（英文版）

关键词 aluminium alloy forging. HYDROGEN EMBRITTLEMENT OXIDE film aluminium alloy forging. hydrogen embrittlement oxide film

分类号 TG319 [金属学及工艺—金属压力加工]

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Journal of Central South University

1997年第1期

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STUDY ON THE FORMATION OF DEFECTS IN DURALUMIN FORGINGS

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