Microstructure and Tensile Deformation Features of Tandem Hot Rolling GH4169 Superalloy

Abstract: By means of solution treatment, microstructure observation and mechanical property measurement, the microstructure and tensile deformation features of tandem hot rolling GH4169 alloy have been investigated. Results shown that, after solution treatment and aging, large numbers of the spherical γ′ phase and the flat-ellipsoidal γ″ phase dispersedly precipitate in the matrix, and acicular or short rod-like δ-phase discontinuously distribute along grain boundaries. As the tensile temperatures increases, the tensile strength and yield strength of the alloy gradually decrease. The tensile deformation features of the alloy are that the twinning and slipping dislocations with double orientations are activated in the matrix. In the later tension, the deformed dislocations pile up near the grain boundary to induce initiation and propagation of cracks due to stress concentration.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Microstructure and Tensile Deformation Features of Tandem Hot Rolling GH4169 Superalloy ; volume:33 ; number:2 ; year:2014 ; pages:131-136 ; extent:6 ; High temperature materials and processes ; 33, Heft 2 (2014), 131-136 (gesamt 6)

Contributors, Places and Time

• Creator: Li, Zhenrong ; Ma, Chunlei ; Tian, Sugui ; Chen, Liqing ; Liu, Xianghua

Further information

• DOI: 10.1515/htmp-2013-0031
• URN: urn:nbn:de:101:1-2501270516152.619303604795
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:25 AM CEST