ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The present work deals with the influence of niobium in solid solution on the dynamicrecrystallization of pure nickel. High-purity nickel and two model nickel-niobium alloys weredeformed to large strains via torsion at temperatures between 800 and 1000°C. Niobium additionsconsiderably increased the flow stress, while they lowered the strain-rate sensitivity and increasedthe apparent activation energy. EBSD of the steady-state microstructures revealed strong grainrefinement. Substructure development was favored, whereas thermal twinning was reduced byniobium. More generally, discontinuous recrystallization kinetics were considerably decreased
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.2966.pdf
