Influence of Zr on the Microstructure and Mechanical Properties of an Al-Zn-Mg-Cu Alloy
作者： Shou Jie Yang , You Hua Xie , Sheng Long Dai , Ming Gao Yan
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.546-549.1069
关键词: Brittleness 、 Alloy 、 Intergranular corrosion 、 Zirconium 、 Fracture (mineralogy) 、 Microstructure 、 Materials science 、 Elongation 、 Mass fraction 、 Metallurgy
摘要: Recently, a new super-high-strength Al-Zn-Mg-Cu alloy with Zr bearing was developed in BIAM. In this paper, the effect of microalloying element on microstructure and mechanical properties investigated. It found that influence age-hardening behaviors remarkable. The strength increases increasing content zirconium, peak value elongation appeared when 0.06%(mass fraction) then decreases. fracture behavior also studied. result shows mechanism converted from intergranular brittle to transgranular ductile model zirconium. Finally, optimum contents were proposed as 0.10%~0.14%.
sci-hub.se 参考文章(16)
N Ryum, Precipitation and recrystallization in an A1-0.5 WT.% Zr-alloy Acta Metallurgica. ,vol. 17, pp. 269- 278 ,(1969) , 10.1016/0001-6160(69)90067-4
J. M. Galbraith, M. H. Tosten, P. R. Howell, On the nucleation ofθ′ and T1 on Al3Zr precipitates in Al-Li-Cu-Zr alloys Journal of Materials Science. ,vol. 22, pp. 27- 36 ,(1987) , 10.1007/BF01160548
T. Ohashi, R. Ichikawa, Duplex-precipitation hardening in Al-Zn-Mg alloys highly super-saturated with Zr Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 12, pp. 546- 549 ,(1981) , 10.1007/BF02648556
K.S. Vecchio, D.B. Williams, Convergent beam electron diffraction study of Al3Zr in Al-Zr AND Al-Li-Zr alloys Acta Metallurgica. ,vol. 35, pp. 2959- 2970 ,(1987) , 10.1016/0001-6160(87)90295-1
M. K. B. Day, A. J. Cornish, T. P. Dent, The Relationship between Structure and Stress-Corrosion Life in an Al–Zn–Mg Alloy Metal Science Journal. ,vol. 3, pp. 175- 182 ,(1969) , 10.1179/MSC.1969.3.1.175
A.K. Mukhopadhyay, G.J. Shiflet, E.A. Starke, Role of vacancies on the precipitation processes in Zr modified aluminum based alloys Scripta Metallurgica Et Materialia. ,vol. 24, pp. 307- 312 ,(1990) , 10.1016/0956-716X(90)90261-E
X. J. Jiang, J. Tafto, B. Noble, B. Holme, G. Waterloo, Differential scanning calorimetry and electron diffraction investigation on low-temperature aging in Al-Zn-Mg alloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 31, pp. 339- 348 ,(2000) , 10.1007/S11661-000-0269-X
John A. Wagner, R. N. Shenoy, The effect of copper, chromium, and zirconium on the microstructure and mechanical properties of Al-Zn-Mg-Cu alloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 22, pp. 2809- 2818 ,(1991) , 10.1007/BF02851375
Bruce Morere, Ravi Shahani, Claire Maurice, Julian Driver, The influence of Al3Zr dispersoids on the recrystallization of hot-deformed AA 7010 alloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 32, pp. 625- 632 ,(2001) , 10.1007/S11661-001-0079-9
M. Conserva, E. Russo, O. Caloni, Comparison of the influence of chromium and zirconium on the quench sensitivity of Al-Zn-Mg-Cu alloys Metallurgical Transactions. ,vol. 2, pp. 1227- 1232 ,(1971) , 10.1007/BF02664256