Effects of microstructure and alloy contents on the Lueders line formation in Al-Mg alloys
- Korea Maritime Univ., Pusan (Korea, Republic of)
- Korea Inst. of Machinery and Materials, Changwon (Korea, Republic of)
There have been several efforts to replace steel with aluminum for automobile weight reduction. Main efforts have been on the development of 5000 series Al alloys (Al-Mg alloys) because of their good formability. However, Al-Mg alloys suffer from the formation of various types of Lueders line. Particularly, type A Lueders lines formed under 1% elongation make a surface completely unacceptable for outer auto body panels. There are various nomenclatures of Lueders line according to researchers. Thompson`s classification will be used in this study because it classifies Lueders lines by surface appearance and shape of stress-strain curve. The effect of grain size and microstructure on the formation of type A Lueders lines in Al-Mg alloys has been investigated in this study. Additionally, the effect of Mg content on the mechanical properties and Lueders line formation in Al-Mg alloys has also been evaluated.
- Sponsoring Organization:
- Korea Science and Engineering Foundation (Korea, Republic of)
- OSTI ID:
- 616229
- Journal Information:
- Scripta Materialia, Vol. 38, Issue 6; Other Information: PBD: 13 Feb 1998
- Country of Publication:
- United States
- Language:
- English
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