新闻动态
综合新闻
科研动态
学术活动
媒体聚焦
通知公告
您现在的位置:首页 > 新闻动态 > 学术活动
5.27】Jonathan Cormier
Topic:Challenges for the design of Ni-based SX superalloys components
 
2019-05-15 | 文章来源:高温合金研究部        【 】【打印】【关闭

Topic:Challenges for the design of Ni-based SX superalloys components

Speaker: Jonathan Cormier

Institut Pprime, UPR CNRS 3346, Physics and Mechanics of Materials Department, ISAE-ENSMA, 1 avenue Clément Ader, BP 40109, 86961 Futuroscope Chasseneuil, France

Time: 9:00-10:30, (Mon.) May 27th, 2019

Venue: Room 403, Shi Changxu Building, IMR CAS

Abstract:

Increasing the operating temperatures is the most reliable way to improve gas turbine efficiency of aero-engines and industrial gas turbines. A dramatic temperature increase has been obtained in the last four decades by adjusting chemical compositions of cast Ni-based superalloys and by using specific processing routes (e.g. directional solidification). However, despite the recent developments of the 5th and 6th generation of Ni-based SX superalloys, it seems that the expected gain in operating temperature by adjusting the chemistry are rather limited.

In this presentation, a special focus will be paid to the improvements still possible in mechanical properties associated to the processing conditions of Ni-based SX superalloys, as well as the consequences of a low temperature plastic deformation introduced in the fabrication stages of SX blades. An overview of their performances under aero-engine certification conditions will also be proposed. Finally, it will be shown how the use of advanced in situ characterization techniques allows much more reliable lifing methodologies of these components.

 

 

文档附件

相关信息
联系我们 | 所长信箱 | 网站地图 | 友情链接
地址: 沈阳市沈河区文化路72号 邮编: 110016
管理员邮箱: office@imr.ac.cn
中国科学院金属研究所 版权所有 辽ICP备05005387号

官方微博

官方微信