EXPERIMENTAL RESEARCH INTO THE FORMABILITY OF AZ31B EXTRUDED TUBE

Acta Metall Sin

2007, Vol. 43

Issue (5): 534-538 DOI:

Research Articles

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EXPERIMENTAL RESEARCH INTO THE FORMABILITY OF AZ31B EXTRUDED TUBE

Zhu-Bin He;

哈尔滨工业大学

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Zhu-Bin He. EXPERIMENTAL RESEARCH INTO THE FORMABILITY OF AZ31B EXTRUDED TUBE. Acta Metall Sin, 2007, 43(5): 534-538 .

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Abstract The formability of AZ31B magnesium alloy extruded tube was investigated by tension test and hydrobulging test. The result show that with the increase of temperature, the tension property along the extrusion direction increased significantly, while the maximum hydrobulging ratio did not change accordingly. The anisotropy induced by extrusion process is one of the main reasons for the difference of properties in axial direction and hoop direction. The extrusion weld line became the position where fracture will first occur, especially at elevated temperature. This acts as another important factor that decreases the formability of the extruded tube during hydrobulging.

Key words: magnesium alloy extruded tube internal high pressure forming

Received: 27 July 2006

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2007/V43/I5/534

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