Effect of crystallographic orientation on mechanical properties of high-temperature alloys

• Published in: Metal science and heat treatment Vol. 39; no. 3-4; pp. 100 - 102
• Main Author: GETSOV, L. B
• Format: Journal Article
• Language: English
• Published: New York, NY Springer 01.03.1997; Springer Nature B.V
• Subjects: Alloys; Applied sciences; Batch production; Cross-disciplinary physics: materials science; rheology; Crystallites; Crystallization; Exact sciences and technology; Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure; Fatigue, embrittlement, and fracture; Heat resistant alloys; Macrostructure; Materials science; Mechanical properties; Metallurgy; Metals. Metallurgy; Orientation; Physics; Treatment of materials and its effects on microstructure and properties; Nickel base alloys; Elastic modulus; Crystal orientation; Mechanical strength; Mechanical properties; Heat resisting alloys; Thermal fatigue; Experimental study; Low cycle fatigue; Columnar structure; Multi-element alloys; Property structure relationship; Microstructure; Transition element alloys
• ISSN: 0026-0673; 1573-8973
• DOI: 10.1007/BF02466275

It is known that cast heat-resistant alloys with a directed structure have a higher high-temperature strength than alloys with an equiaxial structure. For this reason preforms of turbine blades are often produced using the method of directed crystallization, which provides a columnar and single-crystal macrostructure. However, it is difficult to provide a strictly constant orientation of crystallites in batch production of blades. The author analyzes special features of the effect of the orientation of the crystallites on the properties of high-temperature alloys.[PUBLICATION ABSTRACT]