论文部分内容阅读
研究用在超过760℃作为工业和舰船工业燃气轮机叶片的抗热腐蚀的高温合金是十分需要的。因为在使用劣质燃油和海洋性气氛的条件下、高温部件破损的主要原因往往是由于热腐蚀导致强度的显著下降而造成的,这一点已被国内外很多实验工作和实际运转结果所证实。 Ku5合金是我国仿制的铸造型镍基耐蚀合金。它具有良好的高温强度和抗热腐蚀性能,世界各国广泛应用此合金在燃气涡轮发动机上,由于用量很大,而该合金含有大量战略元素钴,其抗热腐蚀性能与其他同类合金强度相比还不够优异。为了进一步提高该合金在高
It is highly desirable to study hot corrosion resistant superalloys for use in industrial and marine industrial gas turbine blades at temperatures in excess of 760 ° C. Because of the use of poor quality fuel and marine atmosphere conditions, the main cause of high temperature damage is often due to hot corrosion caused by a significant decrease in strength, which has been a lot of experiments at home and abroad and the results of the operation confirmed. Ku5 alloy is China’s imitation of cast nickel-based corrosion resistant alloy. It has good high temperature strength and hot corrosion resistance, the world widely used in this alloy gas turbine engine, due to the large amount of, and the alloy contains a large number of strategic elements of cobalt, the hot corrosion resistance and other similar alloy strength compared Not good enough. In order to further improve the alloy at high