材料认证技术在发电设备用材料中的应用与实践

Application of Materials Qualification Technology to the Materials Used in Thermal Power Generation Equipments

摘要: 在发电设备的制造及应用中，需要对采用的材料性能进行评价以确定这些材料是否满足设计和使用要求，这样就产生一个材料认证的过程与技术应用。材料认证被定义为：“通过测试、分析等手段来确定一种材料具备足够的性能来满足某种、某些设计要求，符合某项标准的全过程或部分过程”在实践中，需要对材料认证中的过程、方法、手段等技术进行具体应用，这样可以科学地了解和认识材料认证的意义，从而有助于促进这些材料从设计、选择、制造到应用的实施。本文通过先进的热力发电设备，如F/H/J级燃气轮机和700℃汽轮机用材料在研发、检测和应用中的认证实践，对材料认证进行重新与全面的理解。

Abstract: During the manufacturing and application of thermal power generation equipments, evaluation of the materials’ properties is required to meet the design and operating needs, namely the process of Materials Qualification (MQ).The Materials Qualification (MQ) is defined as “The process of es-tablishing that a given material is of sufficient quality. This generally involves testing, analysis, and establishment or confirmation of standards or requirements”. In practice, understanding the process and methods of MQ can be greatly helpful to enhance the material design, choice, manu-facturing and application. In this paper, the applications of MQ are specifically exemplified for the materials used in the advanced thermal power generation equipments(such as F/H/L-class gas turbines and 700˚C steam turbines ), and some methodologies have been described to further im-prove the understanding of MQ technology execution and application in the field of materials sci-ence and engineering.