首先利用图像处理系统对Mo/PSZ系两相复合材料的微观组织进行了定量分析,然后在不同的实验温度下利用MSP试验法对该系复合材料的高温力学性能进行了测试,详细讨论了该系复合材料不同温度下的MSP强度与其组成,特别是与其对应的微观组织结构特征的关系.实验结果表明,不同温度下复合材料的MSP强度显示出不同的组织依存性,室温时呈W形状变化,在873K、1273K时分别在Mo分散组成和两相连续组成范围呈极大值,这种变化趋势依赖于复合材料所具有的微观组织结构.
In present work, the mechanical properties of Mo/PSZ (partially stabilized zirconia) composites were
investigated at a temperature range from room temperature to 1573K by means of the modified small punch test (MSP) and the dependence of MSP strength for Mo/PSZ
composites on composition and microstructure was discussed in detail. It was found that the change of MSP strength with the composition at various test
temperatures was different: it took the shape of “W” at room temperature; at temperatures up to 873K and 1273K, the MSP strength approached its peak,
respectively at the compositions where the Mo phase was dispersed or both compositional phases were continuous. The results show that MSP strength
depends not only on the composition but also on the composite microstructure.
参考文献
| [1] | 奥田诚一, 齋藤雅弘, 桥田俊之. 日本机械学会论文集(A), 1991, 57: 940--945. [2] 三泽俊平.日本金属学会会报, 1992, 31: 1008--1009. [3] Jiang W, Li J-F, Kawasaki A, et al. Japan Inst. Metals, 1995, 59: 1055--1060. [4] Zhang L M, Li J-F, Watanabe R. Functionally Graded Materials, 1996, ed. Shiota I and Miyamoto M Y, Elsevier (1997): 445--450. [5] Li J-F, Pan W, Sato F, et al. Acta Mater., 2001, 49: 937--945. [6] Li J-F, Kawasaki A, Watanabe R. J. Japan Inst. Metals, 1992, 56: 1450--1456. [7] ~莞, 李敬锋. 金属学报, 2002, 38 (4): 438--442. [8] Kameda J, Bloomer T E, Sugita Y, et al. Mater. Sci. Eng., 1997, A229: 42--54. [9] Giddings V L, Kurtz S M, Jewett C W, et al. Biomaterials, 2001, 22: 1875--1881. [10] 江莞, 王刚, 吴历斌, 等(JIANG Wan, et al). 无机材料学报(Journal of Inorganic Materials), 2002, 17: (4) 827--832. 奬re{[11] Jiang W, Watanabe R, Kawasaki A. J. Japan Inst. Metals, 1998, 62: 1018--1024. [12] Bouvard D, Lange F F. Acta Metall. Mater., 1991, 39: 3083--3090. |
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