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:
Tensile testing was performed on fine-grained GH4169 superalloy sheet at elevatedtemperatures (920°C~980°C) and at different initial strain rates (10-4~10-2s-1). The maximumelongation obtained was 280%. By TEM, active dislocation movement was observed and compared atdifferent strain level and strain rate. Dynamic recovery and recrystallization was also found duringsuperplastic deformation that played an important role of softening. At last the superplasticdeformation mechanism of GH4169 alloy was discussed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.551-552.433.pdf
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