黑龙江科技大学 材料科学与工程学院,黑龙江科技大学 材料科学与工程学院,黑龙江科技大学 材料科学与工程学院,黑龙江科技大学 材料科学与工程学院,黑龙江科技大学 材料科学与工程学院,哈尔滨工业大学
TG139.6 TG146.45
国家自然科学基金项目（面上项目，重点项目，重大项目）
College of Material Science and Engineering,Heilongjiang University of Science and Technology,Harbin,College of Material Science and Engineering,Heilongjiang University of Science and Technology,Harbin,College of Material Science and Engineering,Heilongjiang University of Science and Technology,Harbin,College of Material Science and Engineering,Heilongjiang University of Science and Technology,Harbin,College of Material Science and Engineering,Heilongjiang University of Science and Technology,Harbin,School of Materials Science and Engineering,Harbin Institute of Technology,Harbin
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本文研究了添加Y对等原子比TiNi形状记忆合金显微组织和700℃恒温氧化行为的影响。结果表明加入稀土Y细化了TiNi合金的晶粒尺寸。Y含量为0.5和1%时Y的加入显著降低了Ti-Ni合金的氧化速率。然而当Y含量为5at%时,含Y的Ti-Ni合金的氧化速率增大
The effect of Y addition on the microstructure and isothermal oxidation behaviour of an equal-atomic Ti-Ni shape memory alloy at 700 ℃ in air was investigated. The results showed that the microstructure of Ti50Ni50 alloy was changed obviously with Y addition and the grains of Ti-Ni alloy was evidently refined. The oxidation rate was significantly reduced by the addition of 0.5 at. %Y and 1.0 at. %Y due to the inhibition of the fast outward diffusion of Ti by the segregated Y ions. However, the oxidation rate was increased by 5 at.%Y addition since the formation of oxide along the Y-rich phase broke the continuity of the TiO2 scale.
引用本文
徐家文,刘爱莲,王淑花,周月波,张鹤,蔡伟.稀土Y对Ti50Ni50形状记忆合金700℃下恒温氧化行为的影响[J].稀有金属材料与工程,2016,45(9):2246~2252.[J. W. Xu, A. L. Liu, S. H. Wang, Y. B. Zhou, H. Zhang, W Cai. Effect of Y addition on the isothermal oxidation behaviour of a Ti50Ni50 shape memory alloy at 700℃[J]. Rare Metal Materials and Engineering,2016,45(9):2246~2252.]
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- 收稿日期:2015-08-23
- 最后修改日期:2016-01-14
- 录用日期:2016-02-24
- 在线发布日期: 2016-10-09