| HEAT TREATMENT STRENGTHENING EFFECTS OF RARE EARTHS ON Mg—9Al ALLOY |
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| 作者姓名： | Y.S.Wang J.Z.Yu Q.D.Wang W.J.Ding |
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| 作者单位： | Y.S. Wang and J.Z. YuShanghai Cosmopolitan Automobile Accessory Co. LTD，Shanghai 200083，ChinaQ.D. Wang and W.J. DingSchool of Materials Science and Engineering，Shanghai Jiao Tong University，Shanghai 200030，China |
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| 摘 要： | Mg-9Al-xRE magnesium alloys were studied, where, x is 0, 0.4. 0.8. 1.2 and 1.6% (in weight percent, wt%), respectively. Influence of rare earths (RE) on microstructure and strength in both T4 (solute heat treatment) and T6 (solute heat treatment and artificial ageing treatment) were investigated. Strength of specimen was tested at ambient temperature. The micro structure was analyzed by optical microscopy, scanning electron microscopy (SEM) and X-ray diffraction analysis. RE additions improved T4 tensile strength of the treated alloys. Small addition (0.4wt%) of RE greatly improved the strength of ageing treated (T6) Mg-9Al alloy, but further additions caused decreasing.
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| 收稿时间： | 2002-03-22 |
| 修稿时间： | 2002-05-21 |
HEAT TREATMENT STRENGTHENING EFFECTS OF RARE EARTHS ON Mg-9Al ALLOY |
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| Y.S.Wang
,J.Z.Yu
,Q.D.Wang
,W.J.Ding.HEAT TREATMENT STRENGTHENING EFFECTS OF RARE EARTHS ON Mg-9Al ALLOY[J].Acta Metallurgica Sinica(English Letters),2003,16(1):8-14. |
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| Authors: | YSWang JZYu QDWang WJDing |
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| Affiliation: | 1. Shanghai Cosmopolitan Automobile Accessory Co. LTD, Shanghai 200083, China
2. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China |
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| Abstract: | Mg-9Al-xRE magnesium alloys were studied, where, x is 0, 0.4. 0.8. 1.2 and 1.6% (in weight percent, wt%), respectively. Influence of rare earths (RE) on micro structure. and strength in both T4 (solute heat treatment) and T6 (solute heat treatment and artificial ageing treatment) were investigated. Strength of specimen was tested at ambient temperature. The micro structure was analyzed by optical microscopy, scanning electron microscopy (SEM) and X-ray diffraction analysis. RE additions improved T4 tensile strength of the treated alloys. Small addition (0.4wt%) of RE greatly improved the strength of ageing treated (T6) Mg-9Al alloy, but further additions caused decreasing. |
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| Keywords: | Mg-Al alloy rare earth (RE) heat treatment mechanical property strength |
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