CHENG Junsheng, CHEN Hanbin, CUI Hua, YANG Bin, FAN Jianzhong, TIAN Xiaofeng, ZHANG Jishan. Nanocrystalline Al-Zn-Mg-Cu alloy prepared by cryomilling[J]. Chinese Journal of Engineering, 2006, 28(7): 654-658. DOI: 10.13374/j.issn1001-053x.2006.07.010
Citation: CHENG Junsheng, CHEN Hanbin, CUI Hua, YANG Bin, FAN Jianzhong, TIAN Xiaofeng, ZHANG Jishan. Nanocrystalline Al-Zn-Mg-Cu alloy prepared by cryomilling[J]. Chinese Journal of Engineering, 2006, 28(7): 654-658. DOI: 10.13374/j.issn1001-053x.2006.07.010

Nanocrystalline Al-Zn-Mg-Cu alloy prepared by cryomilling

More Information
  • Received Date: April 14, 2005
  • Revised Date: September 25, 2005
  • Available Online: August 23, 2021
  • Preparation of a nanocrystalline Al-Zn-Mg-Cu alloy by mechanically milling at cryogenic temperature (cryomilling) was studied. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and differential scanning calorimeter (DSC) were used to investigate the effect of cryomilling process on the grain size, the microstrain, the phase transformations in solid and the thermal stability of this alloy. With increasing milling time, the grain size of the alloy decreased sharply. The grain size is 45 nm cryomilled for 10 h. The more the milling time, the greater the microstrain of the alloy is. During the cryomilling, MgZn2 gradually disappeared and super-saturated to α-Al, and only a little MgZn2 remained after 10 h cryomilling within the precision of the X-ray method. The grain of the Al-Zn-Mg-Cu alloy growed very slowly when it was heated under 709 K, which showed that the nanocrystalline Al-Zn-Mg-Cu powders have high thermal stability.
  • Related Articles

    [1]LI Teng-hui, XIE Shou-sheng, PENG Jing-bo, JIA Wei-zhou, HE Da-wei. A weighting matrix optimization method for robust guaranteed cost control based on chaos artificial fish swarm algorithm[J]. Chinese Journal of Engineering, 2018, 40(4): 500-507. DOI: 10.13374/j.issn2095-9389.2018.04.014
    [2]LIAO Fu-cheng, SU Xiao-jie, LIAO Yong-long. H guaranteed performance preview control for uncertain discrete systems with time-delay[J]. Chinese Journal of Engineering, 2016, 38(7): 1008-1016. DOI: 10.13374/j.issn2095-9389.2016.07.017
    [3]ZHAO Li-ying, DOU Li-ya, LIU He-ping. Stability analysis of networked control systems with variable sampling and time delay[J]. Chinese Journal of Engineering, 2014, 36(8): 1123-1127. DOI: 10.13374/j.issn1001-053x.2014.08.020
    [4]ZHANG Lei, LIU He-ping, LIAO Fu-cheng. Delay-dependent stability for uncertain discrete-time systems with time-varying delay by a piecewise analysis approach[J]. Chinese Journal of Engineering, 2010, 32(7): 952-956. DOI: 10.13374/j.issn1001-053x.2010.07.024
    [5]CHEN Ming, TONG Chao-nan. Design of robust H fault-tolerant output feedback control based on LMI[J]. Chinese Journal of Engineering, 2009, 31(5): 648-654. DOI: 10.13374/j.issn1001-053x.2009.05.022
    [6]LIU Kun, LIU He-ping, ZHAO Li-ying. Delay-dependent stability of stochastic systems with time-varying delays[J]. Chinese Journal of Engineering, 2009, 31(4): 516-519. DOI: 10.13374/j.issn1001-053x.2009.04.024
    [7]ZHAO Liying, LIU Kun, LIU Heping. Robust control for a class of uncertain systems with delayed state and control[J]. Chinese Journal of Engineering, 2008, 30(1): 105-108. DOI: 10.13374/j.issn1001-053x.2008.01.022
    [8]CUI Guimei, MU Zhichun, LI Xiaoli, HAO Zhihong. Guaranteed cost control of networked control systems[J]. Chinese Journal of Engineering, 2006, 28(6): 595-599. DOI: 10.13374/j.issn1001-053x.2006.06.019
    [9]LV Hongqing, JIA Yingmin. AQM controller design based on LMI approach[J]. Chinese Journal of Engineering, 2006, 28(5): 485-489. DOI: 10.13374/j.issn1001-053x.2006.05.038
    [10]ZHANG Ruicheng, TONG Chaonan, LI Boqun. H control based on LMI for electromechanical vibration of a rolling mill main drive system[J]. Chinese Journal of Engineering, 2006, 28(2): 179-184. DOI: 10.13374/j.issn1001-053x.2006.02.041

Catalog

    Article Metrics

    Article views (327) PDF downloads (15) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return