CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Anisotropy of Room Temperature Ductility in Haynes 282 Forgings

Ceena Joseph (Institutionen för material- och tillverkningsteknik, Materialteknologi) ; Magnus Hörnqvist (Institutionen för teknisk fysik, Materialens mikrostruktur ) ; Christer Persson (Institutionen för material- och tillverkningsteknik, Materialteknologi)
Proceedings of the 8th International Symposium on Superalloy 718 and Derivatives p. 601-609. (2014)
[Konferensbidrag, refereegranskat]

Haynes 282 is relatively new nickel base superalloy, offering excellent mechanical properties and attracting interest from the gas turbine and aerospace industry. One of the criteria for meeting specification requirement is the room temperature ductility.Forgings of Haynes 282 show large anisotropy in ductility, varying from approximately 25% in longitudinal transverse (LT) to 12% in the short transverse(ST) direction. In this paper LT and ST specimens from forgings were tested for its room temperature ductility.Fractographic and metallographic analysis show the presence of MC and Mc6C carbide banding. Failure in both ST and LT direction was ductile with intergranular fracture, but in the ST direction the failure was preferentially due to cracking of carbides. The orientation of carbides in preferred direction and their excessive segregation affecting ductility in ST is discussed in this work.

Nyckelord: Haynes®282®, Microstructure, Tensile ductility

Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2015-01-19. Senast ändrad 2015-12-03.
CPL Pubid: 210990


Läs direkt!

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Materialteknologi
Institutionen för teknisk fysik, Materialens mikrostruktur (2012-2015)


Metallurgisk process- och produktionsteknik

Chalmers infrastruktur