【摘要】 <正> PtW_8.5和PtW_8.5Re₅Ni₂两种合金（以下简称PtW和PtWRe₅Ni₂）经过再结晶或稳定化处理后出现热电性能的反常现象,即所谓的K状态。这一反常现象的出现表明与一般固溶体不同,当合金在高温下长期退火或缓慢冷却时电阻增加,冷加工时则又减少。合金经冷加工（以下称硬态）和再结晶处理后其室温和高温电阻的变化亦不同,说明与合金的组织状态有关,为此有进一步探讨的必要。更多还原

【Abstract】 The temperature dependence of electrical resistivity of PtW_8.5 and PtW_8.5 Re₅Ni₂ alloys as well as the effect of annealing temperature and cold deformation have been investigated by the measurement of thermo-electromotive force, by DTA and X-ray diffraction. Their resistivity increases after long-term annealing under elevated temperature or after slowly cooled down from high temperature, but decreases with cold deformation. It seems that their anomalous thermo-electro-resistivity may be resulted from the formation of K-state.更多还原