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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
The antiphase boundary APB of (111) and (100) planes of Ni74.5Pd2Al23.5 alloy with L12 structure can be found to be (144 ± 20) mJ / m2 and (102 ± 11) mJ / m2. Experimental data and Ni3Al APB energy data close to Therefore, Ni74.5Pd2Al23.5 alloy plasticity and APB energy alloy size has no significant relationship