| ZL101合金半固态二次加热 |
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| 引用本文： | 杨红亮,张质良,I.Ohnaka,H.Yasuda,A.Sugiyama,T.Ohmichi.ZL101合金半固态二次加热[J].中国有色金属学报,2003,13(3):626-630. |
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| 作者姓名： | 杨红亮 张质良 I.Ohnaka H.Yasuda A.Sugiyama T.Ohmichi |
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| 作者单位： | 1. 上海交通大学,模具CAD国家工程研究中心,上海,200030
2. Osaka University, Yamada oka 2-1, Suita, Osaka, Japan |
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| 摘 要： | 采用半固态合金二次加热，对半固态坯料施加合理的二次加热路径，重新获得适于后续加工的具有近球状固相颗粒均匀分布的半固态组织。采用功率为20kW，频率为30kHz的高频感应加热装置，研究了采用再熔融加热法制备的ZL101半固态合金坯料的二次加热过程。结果表明：为了获得适于最终成形的半固态组织，有必要把半固态坯料二次加热过程分为几个加热速率不同的加热阶段，然后在半固态温度区间某一需要加工温度下进行适度保温。通过实验给出了ZL101合金半固态坯料二次加热条件，并讨论了二次加热条件对半固态组织演化的影响。
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| 关 键 词： | 再熔融加热法 半固态合金 二次加热 组织演化 铝合金 |
| 文章编号： | 1004-0609(2003)03-0626-05 |
| 修稿时间： | 2002年10月28 |
Reheating of semi-solid ZL101 alloy |
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| I.Ohnaka,H.Yasuda,A.Sugiyama,T.Ohmichi.Reheating of semi-solid ZL101 alloy[J].The Chinese Journal of Nonferrous Metals,2003,13(3):626-630. |
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| Authors: | IOhnaka HYasuda ASugiyama TOhmichi |
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| Abstract: | By reheating the semi-solid microstructure with spheroidal solid particles distributed uniformly in the liquid phase can be obtained. The reheating conditions of the semi-solid billet of ZL101 alloy produced by re-melting heat treatment method were studied. The rational reheating route including optimal holding time was obtained through reheating experiments using a high frequency heater with power of 20 kW and frequency of 30 kHz. The results show that it is necessary to divide the whole reheating process into several heating stages with different heating rates in order to obtain satisfactory semi-solid structure before final forming. Finally, the structure evolution during reheating process was discussed. |
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| Keywords: | re-melting heat treatment method semi-solid alloys reheating structure evolution |
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