K_(18)合金是以美国Inconel 713c合金为基础研制的,国外在1958年前后研制成功并广泛使用。它具有良好的综合性能和组织稳定性,是一种不含钴的镍基合金,符合我国资源情况。它的抗氧化性能很高,唯抗热腐蚀性能不足,在海上或在含硫劣质燃料情况下使用更为突出。据报导,713c合金的涡轮叶片和导向叶片用于航空发动机,在东南亚沿 K_ (18) alloy is based on the United States Inconel 713c alloy developed by foreign countries in 1958 successfully developed and widely used. It has a good overall performance and organizational stability, is a cobalt-free nickel-based alloy, in line with China’s resources. Its high oxidation resistance, only resistance to hot corrosion performance, the use of the sulfur in the sea or the case of inferior fuel is more prominent. It is reported that the 713c alloy turbine blades and guide vanes used in aero-engines, along the Southeast Asia