The effects of trace silver and magnesium additions on the microstructure and mechanical properties of the Al-Cu-Li alloys were investigated. The experimental results indicate that the effect of combined additions of Ag and Mg is the most obvious,the next is that of individual addition of Mg, and that of individual addition of Ag is the least. The addition of Ag and Mg in Al-Cu-Li alloy accelerates the precipitation of T1 and results in increasing the ageing hardness and strength. Prior cold work significantly improves the tensile strength by enhancing T1 precipitation in all the alloys investigated.
参考文献
| [1] | I J Polmear;M J Couper .Design and Development of an Experimental Wrought Aluminium Alloy for Use at Elevated Temperatures[J].Metallurgical and Materials Transactions,1988,19:1027-1035. |
| [2] | A Garg;J M Howe .Convergent-beam Electorn Diffraction Analysis of the Ω Phase in an Al-4[J].Alloy Acta MetallMater,1991,39(08):1939-1946. |
| [3] | THE UICC FELLOWSHIPS[J].CHINESE JOURNAL OF CANCER RESEARCH,1989(03):77. |
| [4] | Y C Chang;J M Howe .Composition and Stability of Ω Phase in an Al-Cu-Mg-Ag Alloy[J].Metallurgical and Materials Transactions,1993,24:1461-1470. |
| [5] | V D Scott;S Ketty;R L Trumper .Nucleation and Growth of Precipitates in Al-Cu-Mg-Ag Alloys[J].Materials Science and Technology,1987,3:827-835. |
| [6] | A Garg;Y C Chang;J M Howe .Precipitation of the Ω Phase in an Al-40Cu-05Mg Alloy[J].Scripta Metallurgica et Materialia,1990,24(04):677-680. |
| [7] | R W Fonda;W A Cassada;G Shiflet .Accommodation of the Misfit Strain Surrounding {111} Precipitates(Ω) in Al-Cu-Mg-(Ag)[J].Acta Metallurgica Et Materialia,1992,40(10):2539-2546. |
| [8] | W luo;M yan;W Z Zhu;B Cantor .An Experimental Study on Melt-spinning of AA2618 Alloy[J].Journal of Materials Science,2002,37:2685-2691. |
| [9] | S. P. RINGER;K. HONO;I. J. POLMEAR .NUCLEATION OF PRECIPITATES IN AGED Al-Cu-Mg-(Ag) ALLOYS WITH HIGH Cu:Mg RATIOS[J].Acta materialia,1996(5):1883-1898. |
| [10] | J M Howe;J Lee;A K Vasudevan .Structure and Deformation Behavior of T1 Precipitate Plates in an Al-2Li-1Cu Alloy[J].Metallurgical and Materials Transactions,1988,19:2911-2920. |
| [11] | J R Pickens;F H Heubaum;T J Langan and L S Kramer.Al-(45-63)Cu-13Li-04Ag- 04Mg- 014Zr Alloy eldalite 049[A].BirminghamUK:MCE Publication Ltd,1989:1397-1414. |
| [12] | G Itoh;Q Cui;M Kanno .Effect of a Small Addition of Magnesium and Silver on the Precipitation of T1 Phase in an Al-4Cu-11Li-02Zr(wt%) Alloy[J].Materials Science and Engineering,1996,A211:128-137. |
| [13] | D L Gilmore;E A Starke Jr.Trace Element Effects on Precipitation Processes and Mechanical Properties in Al-Cu-Li-X Alloys[A].Atlanta:The Georgia Institute of Technology School of Materials Science and Engineering,1994:313-320. |
| [14] | W A Cassada;G J Shiflet;E A Starke Jr et al.Mechanism of Al2CuLi(T1) Nucleation and Growth[J].Metallurgical and Materials Transactions,1991,22:287-297. |
| [15] | I S Suh;J K Park .Influence of the Elastic Strain Energy on the Nucleation of Ω Phase in Al-Cu-Mg-(Ag) Alloys[J].Scripta Metallurgica et Materialia,1995,33(02):205-211. |
| [16] | I J Polmear .Role of Trace Elements in Aged Aluminium Alloys[J].Materials Science Forum,1987,13-14:195-214. |
| [17] | I J Polmear .The Ageing Characteristics of Complex Al-Zn-Mg Alloys Distinctive Effects of Copper and Silver on the Ageing Mechanism[J].Journal of the Institute of Metals,1960,89:51-59. |
| [18] | J D Kim;J K Park .Effect of Stretching on the Precipitation Kinetics of an Al-20Li-28Cu-05Mg(013Zr) Alloy[J].Metallurgical and Materials Transactions,1993,24:2613-2621. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%