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1High temperature oxidation behaviors of Ti-Cr alloys with Laves phase TiCr_2显示文摘The high temperature oxidation behaviors of Ti Cr alloys containing 18% ~ 35% Cr with Laves phase TiCr 2 were investigated at 650 ~ 780?℃ for exposure up to 104?h. The results reveal that chromium content has critical significance to the oxidation resistance of the alloys. The scaling rates of the alloys with less than 21% Cr are higher than those measured for pure titanium, but for the alloys with more than 26% Cr their scaling rate is lowered by 1~2 times, under the same oxidizing conditions. Both an external and an internal oxidation layers were observed. The oxidation resistance enhancement by chromium alloying is contributed to the formation of a continuous and compact chromic oxide interleaf in the scale. Oxidation temperature significantly affects the scaling rates of Ti Cr alloys, and the mass gain is doubled with a temperature change from 650?℃ to 700?℃ or from 700?℃ to 780?℃, for the same exposure duration. TiCr 2 shows no negative influence on the high temperature oxidation resistance of the alloys.肖平安 曲选辉 雷长明 祝宝军 秦明礼 敖晖 黄培云 2002中国有色金属学会会刊:英文版2002,12,2:2
2Laves相Ta-Cr系合金的高温抗氧化性研究进展显示文摘Laves相Ta-Cr系合金以其熔点高、适当的密度和良好的高温力学性能成为新型候选高温结构材料之一。综述了Laves相TaCr_2的氧化机制以及提高抗氧化性的方法,着重评述了掺杂、活性元素效应以及涂层保护方面的研究进展,指出了存在的问题及今后的研究方向。万斌 肖璇 周天宁 胡孔生 贺力 曾媛 2015腐蚀与防护2015,36,11:1
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