Study on creep deformation mechanism of 316LN stainless steel from impression creep tests. (May 2014)

• Record Type: Journal Article
• Authors: Naveena, ; Parameswaran, P.; Laha, K.; Mathew, M. D.
• Is Part Of: Materials at high temperatures. Volume 31:Number 2(2014)
• Page Start: 180
• Page End: 184
• Publication Date: 2014-05
• Subjects: Impression creep, -- 316LN SS, -- Creep deformation mechanism; Materials at high temperatures -- Periodicals; High temperatures -- Periodicals; 620.1121705
• DOI: 10.1179/1878641314Y.0000000012
• Languages: English
• ISSNs: 0960-3409

Abstract

Abstract : Impression creep tests were carried out on 316LN stainless steel (SS) at various temperatures in the range 898–973 K. The stress dependence of the steady state impression velocity followed the power-law with stress exponent n = 6. The temperature dependence of the steady state impression velocity obeyed Arrhenius type rate equation. The apparent activation energy for creep deformation ( Q c ) was estimated to be 500 kJ mol −1 . Based on the n and Q c values, it is concluded that the rate controlling mechanism is dislocation creep.