| L12结构Ni74.5Pd2Al23.5合金的反相畴界能 |
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| 引用本文： | 孙坚,李振声,赖其略. L12结构Ni74.5Pd2Al23.5合金的反相畴界能[J]. 金属学报, 1997, 33(11): 1130-1134 |
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| 作者姓名： | 孙坚 李振声 赖其略 |
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| 作者单位： | 上海交通大学国家教委高温材料及高温测试开放实验室!上海，200030，香港城市大学!香港，香港城市大学!香港 |
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| 摘 要： | 应用TEM弱束技术，测得Ll2结构的Ni74.5Pd2Al23.5合金（111）和（100）面的反相畴界APB能分别为（144±20）mJ／m2和（102±11）mJ／m2．实验数据与Ni3Al的APB能数据接近因此，Ni74．5Pd2Al23．5合金塑性的提高与合金APB能的大小无明显关系
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| 关 键 词： | 镍 铝 钯 金属间化合物 自序能 位错 塑性 |
| 收稿时间： | 1997-11-18 |
| 修稿时间： | 1997-11-18 |
THE APB ENERGIES OF Ni_(74.5)Pd_2Al_(23.5) ALLOY WITH L1_2 STRUCTURE |
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| SUN Jian,C. S. Lee,J. K. L. Lai. THE APB ENERGIES OF Ni_(74.5)Pd_2Al_(23.5) ALLOY WITH L1_2 STRUCTURE[J]. Acta Metallurgica Sinica, 1997, 33(11): 1130-1134 |
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| Authors: | SUN Jian C. S. Lee J. K. L. Lai |
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| Affiliation: | SUN Jian(The Public Laboratory of State Education Commission.for High Temperature Materials and High Temperature Tests,Shanghai Jiaotong University,Shanghai ),C. S. Lee,J. K. L. Lai(City University of Hong Kong,Hong Kong) |
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| Abstract: | Using the TEM weak beam technigue,the APB energies on the (111) and (100) planes of Ni74.5Pd2A123.5 alloy with L12 structure were determined to be(144±20) mJ / m2 and (102±11) mJ/m2 respectively.The relation of ordering energies on the ductility of the alloy was also discussed in this paper. |
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| Keywords: | APB energy Ni_3Al intermetallic compound TEM weak beam technique |
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