| 高铝质耐高温材料的热态固体粒子冲蚀磨损行为 |
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| 引用本文： | 杨景周,黄朝晖,黄少平,孙浩然,陈博,房明浩,刘艳改.高铝质耐高温材料的热态固体粒子冲蚀磨损行为[J].稀有金属材料与工程,2009,38(Z2). |
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| 作者姓名： | 杨景周 黄朝晖 黄少平 孙浩然 陈博 房明浩 刘艳改 |
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| 作者单位： | 1. 中国地质大学(北京),北京,100083
2. 洛阳市谱瑞慷达耐热测试设备有限公司,河南,洛阳,471039 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用自行设计的气流喷砂式热态固体粒子冲蚀磨损试验机,在空气气氛和90°攻角条件下,研究了冲蚀粒子大小(36#和90#SiC)以及不同温度(室温、1000、1200、1400 ℃)对高铝砖冲蚀磨损行为的影响.结果表明:冲蚀粒子大小对高铝砖的冲蚀磨损作用影响显著.高铝砖冲蚀率随温度升高逐渐减小,1200 ℃时达到最小,为10 mg/g.1000 ℃和室温下样品表现出脆性材料冲蚀特征.1200 ℃高温下样品的塑性和韧性提高,大大削弱了冲蚀粒子的动能,且骨料与基质的结合强度提高,使得抗冲蚀能力得到增强.
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| 关 键 词： | 高铝质耐高温材料 固体粒子冲蚀 高温冲蚀磨损 冲蚀温度 |
Solid Particle Erosion Behavior of High Alumina Refractory at Elevated Temperatures |
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| Yang Jingzhou,Huang Zhaohui,Huang Shaoping,Sun Haoran,Chen Bo,Fang Minghao,Liu Yangai.Solid Particle Erosion Behavior of High Alumina Refractory at Elevated Temperatures[J].Rare Metal Materials and Engineering,2009,38(Z2). |
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| Authors: | Yang Jingzhou Huang Zhaohui Huang Shaoping Sun Haoran Chen Bo Fang Minghao Liu Yangai |
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| Affiliation: | Yang Jingzhou1,Huang Zhaohui1,Huang Shaoping2,Sun Haoran1,Chen Bo1,Fang Minghao1,Liu Yan'gai1 (1. China University of Geosciences (Beijing),Beijing 100083,China) (2. Luoyang Precondar Heat-resistant Testing Equipment Co. Ltd.,Luoyang 471039,China) |
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| Abstract: | Effects of ambient temperatures and impact particle sizes on solid particle erosion behavior of high alumina bricks were studied. The erosion tests were performed by the self-designed sand-blast type particle erosion-wear equipment, with the impact angle of 90° in the air atmosphere, respectively at 25, 1000, 1200, and 1400 ℃. 36# and 90# SiC abrasives were employed as impact particles. The results indicated that the solid particle erosion behavior of high alumina bricks was influenced remarkably by SiC impact particle size. The mass erosion rate decreased with the temperature increasing, and reached the minimum value of 10 mg/g at 1200 ℃. At 1000 ℃ and room temperature, the erosion behavior and material loss mechanism were in accordance with erosion theory of classic brittle materials. The erosion resistance of high alumina refractory bricks was enhanced due to the increase of plasticity and toughness, as well as the bonded strength between aggregates and the matrix. |
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| Keywords: | high alumina refractory solid particle erosion elevated temperature erosion-wear erosion-wear temperature |
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