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硼砂熔融铸块制样法,既可消除粒度影响,减少基体效应,又很简便、快速,因此近年来在多种材料的分析中已经得到广泛应用。我们采用此法进行铌合金的分析,得到良好结果。一、铸块技术高温熔态物质浇铸成块时,由于铸块各部份的冷却速度的不一致而使铸块内部产生内应力。当它超过强度极限,铸块便出现裂纹,甚至炸得粉碎。为此,人们对
The borax melting ingot sample preparation method can not only eliminate the influence of particle size but also reduce the matrix effect, and is very simple and fast. Therefore, it has been widely used in the analysis of various materials in recent years. We use this method niobium alloy analysis, get good results. First, the ingot technology Molten high-temperature molten material into the block, due to the various parts of the ingot cooling rate of inconsistencies and internal stress within the ingot. When it exceeds the strength limit, the ingot cracks and even explodes. To this end, people are right