运用基于细观机制的应变梯度塑性理论模拟了不同晶粒尺度、不同第二相颗粒直径及体积分数的铝合金应力应变曲线.结果表明,在相同条件下,随着第二相颗粒直径的减小,或随着第二相体积分数的增加,合金的强度明显增强.相反,随着第二相颗粒体积分数的增加,或随着第二相颗粒直径的减小,合金的均匀延伸率均有所下低.同时对不同晶粒尺寸的铝合金应力应变相应的分析表明,第二相颗粒分布的不均匀性对其力学性能也有一定的影响.
参考文献
| [1] | Lloyd D J .[J].International Metals Reviews,1994,39(06):1-23. |
| [2] | Yang J;Cady C;Hu M S et al.[J].Acta Metallurgica Et Materialia,1990,38(12):2613-2619. |
| [3] | Ling Z .[J].Journal of Composite Materials,2000,34:101-108. |
| [4] | Kiser M T;Zok F W;Wilkinson D S .[J].Acta Materials,1996,44:3465-3476. |
| [5] | Nan C W;Clarke D R .[J].Acta Materials,1996,44(09):3801-3811. |
| [6] | Xue Z;Huang Y;Li M .[J].Acta Materials,2002,50(01):149-160. |
| [7] | Zhao M C;Hanamura T;Qiu K et al.[J].Scripta Materialia,2006,54:385-1389. |
| [8] | Shin D H;Park K T .[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2005,410-411:299-302. |
| [9] | Tsuji N;Ueji R;Minamino Y et al.[J].Scripta Materialia,2002,46(04):305-310. |
| [10] | Yu C Y;Kao P W;Chang C P .[J].Acta Materials,2005,53(15):4019-4028. |
| [11] | Y. Huanga;H. Gao;W.D. Nix .Mechanism-based strain gradient plasticity--II. Analysis[J].Journal of the Mechanics and Physics of Solids,2000(1):99-128. |
| [12] | Huang Y.;Qu S.;Hwang KC.;Li M.;Gao H. .A conventional theory of mechanism-based strain gradient plasticity[J].International Journal of Plasticity,2004(4-5):753-782. |
| [13] | Fleck N A;Hutchinson J W .[J].Journal of the Mechanics and Physics of Solids,1993,41(12):1825-1857. |
| [14] | Huang Y.;Xue Z. .A study of microindentation hardness tests by mechanism-based strain gradient plasticity[J].Journal of Materials Research,2000(8):1786-1796. |
| [15] | Gao H;Huang Y .[J].Int J Solid Mater Struct,2001,38(15):2615-2637. |
| [16] | Zhou L;Li S X;Ke W .[J].International Journal of Materials Research,2008,99(02):191-196. |
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