Abstract The microstructure and mechanical properties of retrogression and
retrogression reaging (RRA) treated Al-Zn-Mg-Cu aluminum alloys
with 11.64%Zn (mass fraction) prepared by spray
deposited technology were studied using transmission electron
microscopy (TEM) and MTS-810 materials test system. The results
showed that with the increase of retrogression temperature and retrogression
time, the ultimate tension strength (UTS) of the alloy
were declined and that of RRA treated alloy exhibited a parabola feature.
The UTS of the alloy treated under 120 ℃, 24 h + 180 ℃, 30 min + 120 ℃,
24 h is superior to that of peak aging alloy, which is an ideal RRA
treatment system for spray deposited Al-Zn-Mg-Cu alloys.
[1] Hashemi H R, Ashoori H, Davami P. Mater Sci Technol, 2001; 7: 6394 [2] Islam M U, Wallace W. Met Technol, 1983; 10: 386 [3] Kanno M, Araki I, Cui Q. Mater Sci Technol, 1994, 10: 599 [4] Rajan K, Wallace W, Beddoes J C. J Mater Sci, 1982; 17: 2817 [5] Park J K, Ardell A J. Metall Trans, 1984; 15A: 1531 [6] Danh N C, Rajan K, Wallace W. Metall Trans, 1983; 14A: 1843 [7] Lengsfeld P, Juarez-Islas J A, Cassada W A, Lavernia E J. Int J Rapid Solidif, 1995; 8: 237 [8] Juarez-Islas J A, Perez R. Mate Sci Eng, 1994; A179/180: 614 [9] Wei Q, Xiong B Q, Zhang Y A, Zhu B H, Shi L K. Trans Nonferrous Met Soc Chin, 2001; 11: 258 [10] Beffort O, Solenthaler C, Speidel M O. Mater Sci Eng, 1995; A191: 113 [11] Sanctis M D. Mater Sci Eng, 1991; A141: 103 [12] Plies J B, Grant N J. Int J Powder Metall, 1994; 30: 335 [13] Wang H B, Huang J F, Cui H, Zhang Y A, Xiong B Q, Zhang J S. Acta Metall Sin, 2004; 40: 827 (王洪斌,黄进峰,崔华,张永安,熊柏青,张济山．金属学 报,2004;40:827) [14] Salamci E, Cochrane R F. Mater Sci Technol, 2003; 19: 1130)
CHEN Wenzhe;ZHANG Sa;QIAN Kuangwu (Department of Materials; Fuzhou University; Fuzhou 350002)GU Haicheng (Institute of Materials; Xi'an Jiaotong University; Xi'an 710049)WANG Zhongguang (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015). FATIGUE CRACK GROWTH RATES AND FATIGUE THRESHOLDS OF CENTRIFUGAL SPRAY DEPOSITED Ti-48Al-2Mn-2Nb[J]. 金属学报, 1998, 34(1): 70-74.
