该【高温合金科技英语省公开课一等奖全国示范课微课金奖PPT课件 】是由【1875892****】上传分享，文档一共【8】页，该文档可以免费在线阅读，需要了解更多关于【高温合金科技英语省公开课一等奖全国示范课微课金奖PPT课件 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。High-temperature alloy CLASS: NAME: 2025年2月11日 本科毕业设计答辩 第1页 Contents The definition and development of high-temperature alloy Characteristics and Classification of high-temperature alloy The performance requirements of high-temperature alloy Ways of improving the performance of high-temperature alloy Application and Future of high-temperature alloy 第2页 The definition and development of high-temperature alloy High-temperature alloy is a kind of metal material which can work normally under the high temperature of 600~1200℃. For this reason , we also call it superalloy. With the development of the aviation industry and the mechanical processing industry , we need some materials that can work normally under the high temperature , so high-temperature alloy appeared and developed rapidly since about eighty years ago . Now it has a large number of species and can meet various requirements in the industry. In the future, we believe high-temperature alloy will have better development and brighter prospect. 第3页 Characteristics and Classification of high-temperature alloy High- temperature alloy Iron base superalloy Cobalt base superalloy Nickel base superalloy 70℃ 1200℃ Directionally solidified superalloy Molybdenum base alloys Chromium based superalloys Tungsten base superalloys 第4页 The performance requirements of high-temperature alloy The mechanical properties at high temperatures ① Endurance strength ② Thermal fatigue ③ Relaxation ④ Creep 2. Corrosion resistance at high temperatures It includes antioxidation , anti-sulfidation , anti-nitriding , anti-carbonation , corrosion resistance and so on . 第5页 Ways of improving the performance of high-temperature alloy Structure strengthening ① solid solution strengthening ② precipitation strengthening ③ grain boundary strengthening 2. Process intensification ① powder metallurgy ② directional solidification ③rapid solidification 第6页 Application and Future of high-temperature alloy High-temperature alloy is widely used in engine , for example , aircraft engine , rocket engine , and gas turbine engine . It is also used in other fields , nuclear industry , metallurgical industry , petrochemical , coal gasification and so on .So superalloy is very important for the heavy industry and industrial upgrading . In the future , to develop new superalloy and breakthrough the restriction of traditional metallic materials will have great influence on human development. 第7页 本科毕业设计答辩 THANKS！ 第8页
