原位合成(TiB+TiC)/Ti-6Al-4V基复合材料的室温及高温拉伸性能
Room Temperature and High Temperature Tensile Properties of in situ Synthesized (TiB+TiC)/Ti-6Al-4V Composites
摘 要
利用原位反应制备TiB+TiC增强Ti-6Al-4V基复合材料及基体合金, 对其进行锻造及热处理后, 进行了室温及高温拉伸试验, 并观察了其组织和断口形貌。结果表明: 复合材料的室温抗拉强度与基体合金相比有提高, 且随着增强相含量的增多而提高, 但材料的伸长率却不断降低; 复合材料的高温抗拉强度提高比较明显, 但温度超过500 ℃后, 增强相的高温强化作用降低; 同时随着温度的升高, 基体组织对复合材料的高温强度影响作用不断降低。
拉伸性能
显微组织
titanium matrix composite
tensile property
microstructure
Abstract
(TiB+TiC) reinforced Ti-6Al-4V composites and the matrix alloy were in situ synthesized. After forging and heat-treatment, the room temperature and high temperature tensile tests for samples were carried out, and their microstructure and fracture morphology were analyzed. Results show that the room-temperature tensile strength of composites was higher than that of matrix alloy, and increased with the increase of the content of the reinforcements. Meanwhile the elongation decreased with the increase of the content of the reinforcements. Composites showed a higher tensile strength at high temperature. When temperature was higher than 500 ℃, the strengthening effect of reinforcements dropped. And the effect of the matrix microstructure on strength decreased with the temperature increase.
中图分类号 TG146.2
所属栏目 材料性能及其应用
基金项目 国家自然科学基金资助项目(50871066); 上海市自然科学基金资助项目(09QH1401400, 10JC1407500)
收稿日期 2011/11/26
修改稿日期 2012/8/29
网络出版日期
作者单位点击查看
备注王方秋(1985-), 男, 江苏徐州人, 硕士研究生。
引用该论文: WANG Fang-qiu,QIN Ji-ning,WANG Li-qiang,WANG Min-min,L Wei-jie,ZHANG Di. Room Temperature and High Temperature Tensile Properties of in situ Synthesized (TiB+TiC)/Ti-6Al-4V Composites[J]. Materials for mechancial engineering, 2013, 37(2): 49～52
王方秋,覃继宁,王立强,王敏敏,吕维洁,张荻. 原位合成(TiB+TiC)/Ti-6Al-4V基复合材料的室温及高温拉伸性能[J]. 机械工程材料, 2013, 37(2): 49～52
被引情况:
【1】娄照辉,郑成坤,林波,范建磊,张卫文, "重力铸造与挤压铸造Al-5.0Cu-0.6Mn-1.0Fe-1.0Ni合金的高温力学性能对比",机械工程材料 38, 84-87(2014)
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【5】GENG L, NI D R, ZHANG J, et al.Hybrid effect of TiBw and TiCp on tensile properties of in situ titanium matrix composites[J]. Journal of Alloys and Compound, 2008, 463: 488-492.
【6】TAMIRISAKANDALA S, BHAT R B, MIRACLE D B, et al.Effect of boron on the beta transus of Ti-6Al-4V alloy[J]. Scripta Materialia, 2005, 53: 217-222.
【7】LU W J, ZHANG D, ZHANG X N, et al.Creep rupture life of in situ synthesized (TiB+TiC)/Ti Matrix composites[J]. Scripta Materialia, 2001, 44: 2449-2455.
【8】WANG M M, LU W J, QIN J N, et al.Superplastic behavior of in situ synthesized (TiB + TiC)/Ti matrix composite[J]. Scripta Materialia, 2005, 53: 265-270.
【9】ZHANG X N, LU W J, ZHANG D, et al.In situ technique for synthesizing (TiB+TiC) Ti composites[J]. Scripta Materialia, 1999, 41: 39-46.
【10】LU W J, ZHANG D, ZHANG X N, et al.Microstructural characterization of TiC in in situ synthesized titanium matrix composites prepared by common casting technique[J]. Journal of Alloys and Compound, 2001, 327: 248-252.
【11】MA F C, LU W J, QIN J N, et al.Effect of carbon element on mechanical properties of in situ 5vol% TiC/Ti-1100 composite[J]. Materials Transactions, 2006, 47(4): 1135-1139.
【12】LU W J, ZHANG D, ZHANG X N, et al.Microstructure and tensile properties of in situ synthesized (TiBw+TiCp)/Ti6242 composites[J]. Journal of Materials Science, 2001, 36: 3707-3714.
【13】SRIVATSAN T S, SOBOYEJO W O, LEDERICH R J.Tensile deformation and fracture behaviour of a titanium-alloy metal-matrix composite[J]. Composites Part A: Applied Science and Manufacturing, 1997, 28: 365-376.
【14】LORETTO M H.KONITZER D G.The effect of matrix reinforcement reaction on fracture in Ti-6AI-4V-Base composites[J]. Metallurgical Transactions, 1990, 21: 579-1587.
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