Acta Metallurgica Sinica (English Letters) ›› 2019, Vol. 32 ›› Issue (5): 559-565.DOI: 10.1007/s40195-018-0780-y
• Orginal Article • Previous Articles Next Articles
Yi Meng1(), Jian Sun1, Lei-Gang Cao1, Yue Yang1, Hai-Tao Zhang2, Jian-Zhong Cui2
Received:
2018-03-29
Revised:
2018-05-30
Online:
2019-05-10
Published:
2019-05-27
Yi Meng, Jian Sun, Lei-Gang Cao, Yue Yang, Hai-Tao Zhang, Jian-Zhong Cui. Effect of Al on Expansion Behavior of Mg-Al Alloys During Solidification[J]. Acta Metallurgica Sinica (English Letters), 2019, 32(5): 559-565.
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Fig. 2 Curves of time-temperature (t-T), time-displacement (t-l) of Mg-Al alloys with different Al contents: a 0 wt%; b 1 wt%; c 3 wt%; d 5 wt%; e 10 wt%; f 12.9 wt%; g 15 wt%; h 17 wt%; i 19 wt%; j 22 wt%; k 24 wt%;l 30 wt%
Fig. 3 a Max expansion, b liquidus temperatures, solidus temperatures and corresponding temperatures of max expansion, c expansion displacement measured between liquidus temperature and corresponding temperature of max expansion of Mg-Al alloys with different Al contents during solidification
Al content (wt%) | 3 | 5 | 10 | 12.9 | 15 | 17 | 19 | 22 | 24 | 30 |
---|---|---|---|---|---|---|---|---|---|---|
Highest temperature (°C) | 658.6 | 682.5 | 668 | 657.1 | 663.9 | 650.9 | 662 | 658 | 610.4 | 661.3 |
L (mm) | 0.045 | 0.069 | 0.254 | 0.706 | 0.841 | 0.452 | 0.200 | 0.072 | 0.100 | 0.084 |
Δl (mm) | 0.001 | 0.004 | 0.140 | 0.644 | 0.730 | 0.366 | 0.161 | 0.050 | 0.024 | 0.005 |
L - Δl (mm) | 0.044 | 0.065 | 0.114 | 0.062 | 0.111 | 0.086 | 0.039 | 0.022 | 0.076 | 0.079 |
Table 1 Highest temperature in cavity, max expansion values (L), the corresponding expansion displacements between liquidus temperatures and TL (Δl), and their expansion displacements in liquid-phase zone (L - Δl) for Mg-Al alloys with different Al contents during solidification
Al content (wt%) | 3 | 5 | 10 | 12.9 | 15 | 17 | 19 | 22 | 24 | 30 |
---|---|---|---|---|---|---|---|---|---|---|
Highest temperature (°C) | 658.6 | 682.5 | 668 | 657.1 | 663.9 | 650.9 | 662 | 658 | 610.4 | 661.3 |
L (mm) | 0.045 | 0.069 | 0.254 | 0.706 | 0.841 | 0.452 | 0.200 | 0.072 | 0.100 | 0.084 |
Δl (mm) | 0.001 | 0.004 | 0.140 | 0.644 | 0.730 | 0.366 | 0.161 | 0.050 | 0.024 | 0.005 |
L - Δl (mm) | 0.044 | 0.065 | 0.114 | 0.062 | 0.111 | 0.086 | 0.039 | 0.022 | 0.076 | 0.079 |
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