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Browsing by Author "Ojha, S.N."

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Acoustic emission studies during the high temperature oxidation of 2.25Cr-1Mo steel at 1173 K

Jha, B.B.; Mishra, B.K.; Mohapatra, B.K.; Ojha, S.N. (Materials At High Temperatures, 27(4), 2011: 301-311)

Breakaway oxidation behaviour of 2.25Cr-1Mo steel has been studied at 1173 K, using the acoustic emission (AE) technique. AE parameters, i.e. events, ring down counts (RDC), rise time (RT) and event duration (ED) show ...
Effect of Microstructural Variation on Hardness Degradation of 2.25Cr-1Mo Steel and Its Impact on Residual Life Assessment

Jha, B.B.; Mishra, B.K.; Ojha, S.N. (Canadian Metallurgical Quarterly, 49(3), 2010: 293-299)

Hardness measurement for assessing the remaining life of high temperature components undergoing microstructure degradation has become a popular method. This paper examines the variation in hardness of different phases of ...
Effect of thermal ageing on the evolution of microstructure and degradation of hardness of 2.25Cr-1Mo steel

Jha, B.B.; Mishra, B.K.; Satpati, B.; Ojha, S.N. (Materials Science-Poland, 28(1), 2010: 335-346)

Thermal ageing of various durations and at various temperatures was performed in order to understand microstructural changes associated with precipitation and coarsening of carbides in 2.25Cr-1Mo steel. The severity of ...
Oxidation behaviour of 2.25Cr-1Mo steel and its characterisation using acoustic emission

Jha, B.B.; Mishra, B.K.; Ojha, S.N. (Canadian Metallurgical Quarterly, 51(2), 2012: 221-227)

2.25Cr-1Mo steel is widely used for high temperature applications as heat exchangers and pipings in power plants. The microstructural instability and discontinuity of oxide scale are problems associated with their long ...

Browsing by Author "Ojha, S.N."

Browsing by Author "Ojha, S.N."

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