| 钇对Ti-23Al-25Nb合金压缩性能的影响 |
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| 引用本文： | 司玉锋,陈玉勇,孔凡涛,刘志光.钇对Ti-23Al-25Nb合金压缩性能的影响[J].航空材料学报,2006,26(6):1-5. |
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| 作者姓名： | 司玉锋 陈玉勇 孔凡涛 刘志光 |
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| 作者单位： | 哈尔滨工业大学,材料科学与工程学院,哈尔滨,150001 |
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| 摘 要： | 采用SEM和XRD分析热处理后合金试样的显微组织及相组成,用TEM分析原始组织中钇的存在方式.结果表明,钇在原始组织中以Y2O3形式存在;钇增加O相衍射峰,提高Ti-23Al-25Nb合金压缩性能,如抗压强度、压缩率等,钇的强化作用是由于Y2O3第二相粒子强化和钇细化晶粒的晶界强化共同作用的结果.
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| 关 键 词： | Ti-23Al-25Nb合金 钇 显微组织 压缩性能 |
| 文章编号： | 1005-5053(2006)06-0001-05 |
| 修稿时间： | 2005年9月29日 |
Effects of Y on Compression Properties of Ti-23Al-25 Nb Alloy |
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| SI Yu-feng,CHEN Yu-yong,KONG Fan-tao,LIU Zhi-guang.Effects of Y on Compression Properties of Ti-23Al-25 Nb Alloy[J].Journal of Aeronautical Materials,2006,26(6):1-5. |
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| Authors: | SI Yu-feng CHEN Yu-yong KONG Fan-tao LIU Zhi-guang |
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| Abstract: | Microstructures and phase compositions of Ti-23Al-25Nb alloy after different heat treatment were analyzed by SEM and XRD.The form of element of Y in original structure was analyzed by TEM.The results show that the element of Y is in the form of Y_2O_3.Being as the addition of element of Y,diffraction peaks of O-phase increase,and the compression properties of Ti-23Al-25Nb alloy such as compression strength and compressibility increase.Strengthening effect of Y is the result of combined action of dispersion strengthening of Y_2O_3 and grain boundary strengthening of Y. |
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| Keywords: | Ti-23Al-25Nb alloy Y microstructure compression property |
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