x射线衍射分析表明,PdW_(20)合金是单相面心立方固溶体,热处理后出现明显短程序。作者认为不同晶型的Pd和W形成固溶体时,基体点阵畸变的有效程度比较大,从而具有较高的残余电阻率和加工态电阻率;退火慢冷时,这种有效畸变可能促进了短程有序的形成,使电子散射增加,导致合金的K效应。 X-ray diffraction analysis shows that the PdW 20 alloy is a single-phase face-centered cubic solid solution with obvious short procedure after heat treatment. The authors believe that Pd and W in different crystal forms a solid solution, matrix matrix distortion is more effective, which has a higher residual resistivity and processing resistivity; annealing slow cooling, the effective distortion may promote short-range Orderly formation of electron scattering increases, leading to the K effect of the alloy.