采用喷射沉积技术制备Al-27％ Si(质量分数)合金,研究循环热处理对其组织、残余应力和力学性能的影响.采用Ansys有限元模拟结合X射线检测评估Al-27％ Si合金残余热应力的分布和大小.结果表明,喷射沉积Al-27％ Si合金由均匀细小的初晶Si和α-Al基体组成,初晶Si的尺寸随热循环温度升高和次数增加而增大.Ansys有限元模拟结果显示喷射沉积Al-27％ Si合金增强体Si颗粒受径向拉应力,Al基体受径向压应力,平均残余热应力为121 MPa,小于X射线法测的平均残余应力131.7 MPa.Al-27％ Si合金屈服强度与残余热应力、Si相形貌和大小有关.循环热处理后,当Si相形貌和尺寸相当时,材料的屈服强度随残余热应力的降低而升高;当Si相尺寸随热循环增大时,在残余应力相当的情况下材料的屈服强度降低.
参考文献
| [1] | Wang, C.;Yu, F.;Zhao, D.;Zhao, X.;Zuo, L..Hot deformation and processing maps of DC cast Al-15%Si alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:73-80. |
| [2] | 张宇博,卢一平,接金川,傅莹,钟德水,李廷举.超声处理铝硅合金过程中的溢出现象[J].中国有色金属学报（英文版）,2013(11):3242-3248. |
| [3] | H.E. Hu;Xin-yun Wang;Lei Deng.High temperature deformation behavior and optimal hot processing parameters of Al-Si eutectic alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:45-51. |
| [4] | F. Alshmri;H. V. Atkinson;S. V. Hainsworth;C. Haidon;S. D. A. Lawes .Dry sliding wear of aluminium-high silicon hypereutectic alloys[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2014(1/2):106-116. |
| [5] | Seok H K;Lee J C;Lee H I .Extrusion of spray-formed Al-25Si-X composites and their evaluation[J].Journal of Materials Processing Technology,2005,160:354-360. |
| [6] | 许俊华,李浩,喻利花,王贵会,范曦,张豪.喷射成形50Si50Al合金的组织与性能[J].材料热处理学报,2013(08):89-94. |
| [7] | Haizhi Ye .An Overview of the Development of Al-Si-Alloy Based Material for Engine Applications[J].Journal of Materials Engineering and Performance,2003(3):288-297. |
| [8] | 夏峰,李建平,李高宏,杨通,秦滢杰,余申卫,郭永春,张康虎,杨忠.熔体搅拌法制备高阻尼铝基复合材料的组织与性能[J].铸造,2005(12):1223-1226. |
| [9] | 夏峰,李高宏,李建平,朱满.Cu对Al-15Si合金的高温摩擦磨损行为的影响[J].西安工业大学学报,2010(06):548-552. |
| [10] | Jones H. .A perspective on the development of rapid solidification and nonequilibrium processing and its future[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(0):11-19. |
| [11] | 李未龙,余立,汪选国.小孔法测量残余应力[J].武钢技术,2013(06):55-59. |
| [12] | 方洪渊.焊接结构学[M].北京:机械工业出版社,2008:62-72. |
| [13] | 李松瑞;周善初;田荣璋.金属热处理[M].长沙:中南大学出版社,2003 |
| [14] | Du Y;Chang Y A;Huang B Y et al.Diffusion coefficients of some solutes in FCC and liquid Al:Critical evaluation andcorrelation[J].Materials Science and Engineering A,2003,363:140-151. |
| [15] | Hardy S C;Voorhees P W .Ostwald ripening in a system with a high volume fraction of coarsening phase[J].Metallurgical Transactions A,1988,19:2713-2721. |
| [16] | Goicoechea J;Garcia C C;Louis E et al.Surface tension of binary and ternary aluminum alloys of the systems Al-Si-Mg and Al-Zn-Mg[J].Journal of Materials Science,1992,27:5247-5252. |
| [17] | 李振军,吴惠云.基于不同基体条件的Sm2Zr2O7/YSZ双层热障涂层界面残余热应力的数值仿真[J].陶瓷学报,2012(03):304-309. |
| [18] | 田荣璋.铸造铝合金[M].长沙:中南大学出版社,2006:40. |
| [19] | 张建云 .碳化硅颗粒增强铝基复合材料的性能研究[D].南京航空航天大学,2006. |
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%