Experimental and Numerical Modeling of the Stress Rupture Behavior of Nickel-Based Single Crystal Superalloys Subject to Multi-Row Film Cooling Holes

• Published in: Metals (Basel ) Vol. 7; no. 9; p. 340
• Main Authors: Xu, Yuanming, Sun, Weikang, Dai, Wei, Hu, Chunyan, Liu, Xinling, Zhang, Weifang
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.09.2017
• Subjects: Air cooling; Axial stress; Computer simulation; Cooling; creep rupture behavior; Crystals; Engine design; FEA; Film cooling; Finite element method; flim cooling hole; Mathematical models; Nickel base alloys; Numerical methods; Rupture; single crystal; Single crystals; Stress concentration; Stress distribution; superalloy; Superalloys; True stress

The stress rupture behavior of nickel-base single crystal superalloys is a primary issue facing aero-engine design, which has been studied for more than 40 years. To a large degree, it is the existence of film cooling holes with the introduction of air cooling techniques that adds the extra challeng...