【摘要】 本文详细讨论了钾盐对ZL104合金组织和性能的影响。ZL04合金经钾盐变质比钠盐变质延伸率提高20%以上,钾盐变质有效时间为2小时。经钾盐变质后共晶硅的形貌变化,本文也作了分析。更多还原

【Abstract】 AbstractThe use of potassium salts for the mofdiication of an allov ZL104 is discuasecl in detail. The elongation of an alloy ZLI04 modified with polasium salts was increased dy 20% as compased with that modified with sodium salts. The period of validity of pola-ssium salts modification is two hous. The effect of adding polassium on the topography of eutectic silicon is studied更多还原