材料研究学报  2013, Vol. 27 Issue (2): 119-125

研究报告 本期目录 | 过刊浏览 |

固溶处理对Al-7.9Zn-2.5Mg-1.0Cu合金淬火敏感性的影响*

张新明1, 2 欧阳惠1, 2 刘胜胆1, 2 吴泽政1, 2 王雷1, 2 周志乐1, 2

1. 中南大学 材料科学与工程学院 长沙 410083 2. 有色金属材料科学与工程教育部重点实验室 长沙 410012

Influence of Solution Treatment on the Quench Sensitivity of Al-7.9Zn-2.5Mg-1.0Cu Alloy

ZHANG Xinming1,2** OUYANG Hui1,2 LIU Shengdan1,2 WU Zezheng1,2 WANG Lei1,2 ZHOU Zhile1,2

1. School of Materials Science and Engineering, Central South University, Changsha 410083; 2. Key Laboratory of the ministry of education of Non-ferrous Metal Material Science and Engineering, Changsha 410083

张新明 欧阳惠 刘胜胆 吴泽政 王雷 周志乐. 固溶处理对Al-7.9Zn-2.5Mg-1.0Cu合金淬火敏感性的影响*[J]. 材料研究学报, 2013, 27(2): 119-125.
. Influence of Solution Treatment on the Quench Sensitivity of Al-7.9Zn-2.5Mg-1.0Cu Alloy[J]. Chinese Journal of Materials Research, 2013, 27(2): 119-125.

摘要 参考文献 相关文章 Metrics 全文: PDF(6597 KB)   摘要: 采用末端淬火-硬度测试、差示扫描量热法、透射电镜、扫描电镜等方法, 研究了固溶处理对Al-7.9Zn-2.5Mg-1.0Cu合金淬火敏感性的影响。结果表明:随着距淬火端面距离的增加, 合金试样的硬度逐渐降低, 处理制度为475 ℃/2 h试样的淬火敏感性明显比处理制度为450 ℃/8 h+475 ℃/2 h试样的低, 其淬透层深度超过100 mm, 而处理制度为450 ℃/8 h+475 ℃/2 h试样的淬透层深度仅为65 mm。固溶处理制度对合金过饱和度的影响不大, 但是与处理制度为475 ℃/2 h的试样相比, 处理制度为450 ℃/8 h+475 ℃/2 h试样的再结晶晶粒和(亚)晶界数目大大增加, 促进了慢速淬火过程中η平衡相的析出, 且尺寸相对粗化, 导致了淬火敏感性的提高。 关键词 ： 金属材料,  淬火敏感性,  固溶制度,  Al-Zn-Mg-Cu     Abstract：The influence of solution treatment on the quench sensitivity of Al-7.9Zn-2.5Mg-1.0Cu alloy during quenching was investigated by optical microscopy(OM), differential scanning calorimetry(DSC), scanning electron microscopy(SEM), transmission electron microscopy(TEM) and end quenching-hardness measurement. The results show that the hardness of different solution treatment samples decreases with the distance from quenching end increase. Moreover, the quench sensitivity of 450 ℃/8 h+475 ℃/2 h treatment sample is higher than that of samples of 475 ℃/2 h treatment. The quenched depth is about 65mm, while that of samples of 475 ℃/2 h treatment is more than 100mm. There is few effects of solution treatment on the degree of supersaturation, While comparing to 475 ℃/2 h single-solution sample, the number of recrystallization grains and subgrains of 450 ℃/8 h+475 ℃/2 h double-solution sample increase, which facilitated separation of more coarse η equilibrium particles in the samples of, and lead to higher quench sensitivity. Key words： metallic materials    quench sensitivity    solution treatment    Al-Zn-Mg-Cu      ZTFLH:  TG146   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 44.8K 链接本文: https://www.cjmr.org/CN/      或      https://www.cjmr.org/CN/Y2013/V27/I2/119 1 A. Heinz, A. Haszler, C. Keidel, S. Moldenhauer, R. Benedictus, W. S. 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