| 7050铝合金晶粒细化剂的选择和应用 |
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| 引用本文： | 袁冰梅.7050铝合金晶粒细化剂的选择和应用[J].湖南有色金属,2014(4):49-51. |
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| 作者姓名： | 袁冰梅 |
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| 作者单位： | 广西南南铝加工有限公司,广西南宁530031 |
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| 摘 要： | Zr元素对Al-Ti-B中间合金有严重的＂毒化＂作用,因此,在生产7050等含Zr的Al-Zn-Mg-Cu系超高强度铝合金时不宜使用Al-Ti-B中间合金细化晶粒。Al-Ti-C有效地改善了Al-Ti-B的缺点,降低偏聚倾向,对＂中毒＂起抑制或免疫作用。生产7050铝合金铸锭时,控制Zr含量小于0.12%,将铝熔体温度控制在730℃以下,使用Al-3Ti-0.15C中间合金细化晶粒不会产生细化＂中毒＂,有很好的细化效果。
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| 关 键 词： | 7050铝合金 高强度 晶粒细化剂 “毒化”作用 |
Aluminum Alloy Grain Refiner Selection and Application |
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| YUAN Bing-mei.Aluminum Alloy Grain Refiner Selection and Application[J].Hunan Nonferrous Metals,2014(4):49-51. |
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| Authors: | YUAN Bing-mei |
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| Affiliation: | YUAN Bing-mei ( Guangxi Alnan Aluminium Fabrication Co. , Ltd. , Nanning 530031, China) |
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| Abstract: | Zr elements has serious poisoning effect on Al-Ti-B master alloy,therefore,Al-Ti-B grain refiner can not be used in 7050 Al-Zn-Mg-Cu ultrahigh strength aluminum alloy with Zr elements.Al-Ti-C effectively improves the shortcomings of Al-Ti-B,and reduces the segregation tendency of poisoning effect or immune suppressing effect.In the 7050 aluminum ingot production,the control Zr content is less than 0.12%,the aluminum melt temperature controlled below 730 ℃,the use of Al-3Ti-0.15 C master alloy grainer has a good refinement effect without poisoning effect. |
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| Keywords: | 7050 aluminum alloy high strength grain refiner poisoning effect |
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