利用钛与镧、硼单质之间的原位反应,经真空自耗电弧熔炼与后续的热加工工艺制备了增强体含量不同的(TiB+ La2O3)/TC4钛基复合材料,并研究了它的显微组织和室温拉伸性能.结果表明:该复合材料的基体为网篮状组织,增强体分布均匀,其中TiB呈短纤维状并沿加工方向分布,La2O3呈短棒状或颗粒状;与基体TC4合金相比,复合材料的室温抗拉强度均有所提高,且随着TiB与La2O3增强体含量的增多而增大,增强体起到了较好的增强作用;复合材料的拉伸断裂方式均为韧性断裂.
参考文献
[1] | Tjong SC.;Ma ZY. .Microstructural and mechanical characteristics of in situ metal matrix composites [Review][J].Materials Science & Engineering, R. Reports: A Review Journal,2000(3/4):49-113. |
[2] | S.C. Tjong;Yiu-Wing Mai .Processing-structure-property aspects of particulate- and whisker-reinforced titanium matrix composites[J].Composites science and technology,2008(3/4):583-601. |
[3] | DANIEL B S S;MURTHY V S R;MURTY G S .Metal-ceramic composites via in-situ methods[J].Journal of Materials Processing Technology,1997,68(02):132-155. |
[4] | Zhifeng Yang;Weijie Lu;Lin Zhao .In situ synthesis of hybrid-reinforced titanium matrix composites[J].Materials Letters,2007(11/12):2368-2372. |
[5] | Yungang Li;Lu Xiao;Weijie Lu;Jining Qin;Di Zhang .Creep rupture property of in situ synthesized (TiB + La2O3)/Ti composite[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2008(1/2):415-419. |
[6] | LV XIAO;WEIJIE LU;DI ZHANG .Effects of Reinforcements on Creep Resistance of Hybrid-Reinforced Titanium Matrix Composites[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2010(7):1855-1863. |
[7] | JIUXIAO L;LIQIANG W;JINING Q et al.Thermal stability of in situ synthesized (TiB+La2Oa)/Ti composite[J].MaterialsScience & Engineering:A,2011,528(15):4883-4887. |
[8] | Jiuxiao Li;Liqiang Wang;Jining Qin.Effect of microstructure on high temperature properties of in situ synthesized (TiB + La_2O_3)/Ti composite[J].Materials Characterization,2012:93-98. |
[9] | 肖旅 .原位自生耐热钛基复合材料的高温性能研究[D].上海交通大学,2010. |
[10] | ZHANG X;ZHAN Y;MO H et al.Microstructure and compressive properties of in situ synthesized Ti-Si alloy composites reinforced with La2O3 particles[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2009,526(1/2):185189. |
[11] | COX H L .The elasticity and strength of paper and other fibrous materials[J].British Journal of Applied Physics,1952,3:72-74. |
[12] | NARDONE V C;PREWO K M .On the strength of discon tinuous silicon carbide reinforced aluminum composites[J].Scripta Metall,1986,20(01):43-48. |
[13] | 杨志峰 .多元增强钛基复合材料的微结构及性能研究[D].上海:上海交通大学,2007. |
[14] | 吕健,王立强,覃继宁,吕维洁,张荻.氧含量对原位合成(TiB+La203)/Ti磐合材料力学-件能的影Ⅱ向[J].机械工程材料,2011(06):61-64. |
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%