The effect of temperature on the low cycle fatigue (LCF) and tensile behaviour of 304L(N) SS is d... more The effect of temperature on the low cycle fatigue (LCF) and tensile behaviour of 304L(N) SS is discussed in this paper. LCF tests were conducted in the temperature range 298-873 K at a constant strain amplitude of 0.6% and at a constant strain rate of 3 × 10 - 3 s - 1 . Tension tests were conducted in the temperature range 298 to 923 K in the strain rate range of 3 × 10 - 5 s - 1 to 3 x 10 - 3 s - 1 . Dynamic strain ageing was found to influence the cyclic deformation and fracture behaviour of the alloy.
78 Journal of Nuclear Materials 150(1987) 78 -84 North-Holland. Amsterdam EVALUATION OF AGEING-IN... more 78 Journal of Nuclear Materials 150(1987) 78 -84 North-Holland. Amsterdam EVALUATION OF AGEING-INDUCED EMBRITTLEMENT IN AN AUSTENITIC STAINLESS STEEL BY INSTRUMENTED IMPACT TESTING KG SAMUEL, PR SREENIVASAN, SK RAY and P. RODRIGUEZ ...
International Journal of Pressure Vessels and Piping, 1992
The influence of temperature and prior cold work on the strain-hardening exponent for a nitrogen-... more The influence of temperature and prior cold work on the strain-hardening exponent for a nitrogen-bearing type 316L (316 LN) austenitic stainless steel was studied at a nominal strain rate of 3 × 10−4s−1. The strain-hardening exponent showed a hump in its variation with temperature in the dynamic-strain-ageing temperature range but in general decreased with increase in temperature and prior cold work. The strain-hardening exponent was also found to decrease with increase in strength at all temperatures but showed a temperature-insensitive region in the dynamic-strain-ageing temperature range.
... All rights reserved Copyright '~ 1988 Pergamon Press plc SERRATED YIELDING IN AISI 316 S... more ... All rights reserved Copyright '~ 1988 Pergamon Press plc SERRATED YIELDING IN AISI 316 STAINLESS STEEL KG SAMUEL, SL MANNAN and P ... Nous trouvons qu'une certaine combinaison temps-temp6rature du vieillissement 61imine les hachures fi 923 K. Les resultats ...
... CC Packiaraj, SK Ray and SL Mannan: 'The influence of crack closure on the positive load... more ... CC Packiaraj, SK Ray and SL Mannan: 'The influence of crack closure on the positive load ratio dependence of fatigue threshold stress ... On the threshold for fatigue growth', in 'Fracture 1977: advances in research on the strength and fracture of materials', (ed. DMR Taplin), Vol. ...
Corrosion behavior of austempered ductile iron (ADI) and forged EN31 steel balls in a ground iron... more Corrosion behavior of austempered ductile iron (ADI) and forged EN31 steel balls in a ground iron ore slurry was studied as a function of time in the slurry, while the microstructure of ADI developed due to different tempering temperature and tempering time. The corrosion rates of the grinding balls immersed in the iron ore slurry were determined using electrochemical analysis and weight loss methods. It was found that the pH of the iron ore slurry increased with time and the corrosion behavior was influenced by the pH of the slurry. The corrosion rate of forged EN31 steel balls increased with the increase in time and pH of the slurry, whereas the corrosion rate of ADI balls depended on the austempering treatment. In general, the forged EN31 steel ball offered better corrosion resistance than ADIs during the early stages of exposure in the slurry (low pH values of the slurry), but at higher pH values of the slurry, the ADIs yielded better corrosion resistance than forged EN31 steel balls. The ADI austempered at higher temperatures showed better corrosion resistance than the ones austempered at lower temperatures.
ABSTRACT The influence of grain size on the tensile deformation behaviour of a type 316 stainless... more ABSTRACT The influence of grain size on the tensile deformation behaviour of a type 316 stainless steel has been investigated in the temperature range 500–1223 K. The Hall-Petch relation was found to be valid up to 1023 K. The variation of Hall-Petch constants with strain and temperature has been analysed and found to generally support modified pile-up theories of grain boundary strengthening. The variations of flow stress and work hardening rate with temperature and grain size have been found to be influenced by dynamic strain ageing which occurs in the temperature range 523–923 K.
The effect of temperature on the low cycle fatigue (LCF) and tensile behaviour of 304L(N) SS is d... more The effect of temperature on the low cycle fatigue (LCF) and tensile behaviour of 304L(N) SS is discussed in this paper. LCF tests were conducted in the temperature range 298-873 K at a constant strain amplitude of 0.6% and at a constant strain rate of 3 × 10 - 3 s - 1 . Tension tests were conducted in the temperature range 298 to 923 K in the strain rate range of 3 × 10 - 5 s - 1 to 3 x 10 - 3 s - 1 . Dynamic strain ageing was found to influence the cyclic deformation and fracture behaviour of the alloy.
78 Journal of Nuclear Materials 150(1987) 78 -84 North-Holland. Amsterdam EVALUATION OF AGEING-IN... more 78 Journal of Nuclear Materials 150(1987) 78 -84 North-Holland. Amsterdam EVALUATION OF AGEING-INDUCED EMBRITTLEMENT IN AN AUSTENITIC STAINLESS STEEL BY INSTRUMENTED IMPACT TESTING KG SAMUEL, PR SREENIVASAN, SK RAY and P. RODRIGUEZ ...
International Journal of Pressure Vessels and Piping, 1992
The influence of temperature and prior cold work on the strain-hardening exponent for a nitrogen-... more The influence of temperature and prior cold work on the strain-hardening exponent for a nitrogen-bearing type 316L (316 LN) austenitic stainless steel was studied at a nominal strain rate of 3 × 10−4s−1. The strain-hardening exponent showed a hump in its variation with temperature in the dynamic-strain-ageing temperature range but in general decreased with increase in temperature and prior cold work. The strain-hardening exponent was also found to decrease with increase in strength at all temperatures but showed a temperature-insensitive region in the dynamic-strain-ageing temperature range.
... All rights reserved Copyright '~ 1988 Pergamon Press plc SERRATED YIELDING IN AISI 316 S... more ... All rights reserved Copyright '~ 1988 Pergamon Press plc SERRATED YIELDING IN AISI 316 STAINLESS STEEL KG SAMUEL, SL MANNAN and P ... Nous trouvons qu'une certaine combinaison temps-temp6rature du vieillissement 61imine les hachures fi 923 K. Les resultats ...
... CC Packiaraj, SK Ray and SL Mannan: 'The influence of crack closure on the positive load... more ... CC Packiaraj, SK Ray and SL Mannan: 'The influence of crack closure on the positive load ratio dependence of fatigue threshold stress ... On the threshold for fatigue growth', in 'Fracture 1977: advances in research on the strength and fracture of materials', (ed. DMR Taplin), Vol. ...
Corrosion behavior of austempered ductile iron (ADI) and forged EN31 steel balls in a ground iron... more Corrosion behavior of austempered ductile iron (ADI) and forged EN31 steel balls in a ground iron ore slurry was studied as a function of time in the slurry, while the microstructure of ADI developed due to different tempering temperature and tempering time. The corrosion rates of the grinding balls immersed in the iron ore slurry were determined using electrochemical analysis and weight loss methods. It was found that the pH of the iron ore slurry increased with time and the corrosion behavior was influenced by the pH of the slurry. The corrosion rate of forged EN31 steel balls increased with the increase in time and pH of the slurry, whereas the corrosion rate of ADI balls depended on the austempering treatment. In general, the forged EN31 steel ball offered better corrosion resistance than ADIs during the early stages of exposure in the slurry (low pH values of the slurry), but at higher pH values of the slurry, the ADIs yielded better corrosion resistance than forged EN31 steel balls. The ADI austempered at higher temperatures showed better corrosion resistance than the ones austempered at lower temperatures.
ABSTRACT The influence of grain size on the tensile deformation behaviour of a type 316 stainless... more ABSTRACT The influence of grain size on the tensile deformation behaviour of a type 316 stainless steel has been investigated in the temperature range 500–1223 K. The Hall-Petch relation was found to be valid up to 1023 K. The variation of Hall-Petch constants with strain and temperature has been analysed and found to generally support modified pile-up theories of grain boundary strengthening. The variations of flow stress and work hardening rate with temperature and grain size have been found to be influenced by dynamic strain ageing which occurs in the temperature range 523–923 K.
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