Toward a better understanding of the enhancing/embrittling effects of impurities in Nickel grain boundaries

• Published in: Scientific reports Vol. 9; no. 1; pp. 14024 - 10
• Main Authors: Bentria, El Tayeb, Lefkaier, Ibn Khaldoun, Benghia, Ali, Bentria, Bachir, Kanoun, Mohammed Benali, Goumri-Said, Souraya
• Format: Journal Article
• Language: English
• Published: England Nature Publishing Group 01.10.2019; Nature Publishing Group UK
• Subjects: Boundaries; Chromium; Grain boundaries; Impurities; Light effects; Mechanical properties; Nickel; Tensile strength

The fracture path follows grain boundaries (GB) in most metallic system under tensile test. In general, impurities, even in ppm concentration, that segregate to these boundaries can remarkably change materials mechanical properties. Predicting impurities segregation effects in Nickel super-alloys mi...