Microstructural Modifications Due to Tungsten and Tantalum in 9Cr Reduced Activation Ferritic Martensitic Steels on Creep Exposure

R. Mythili, Ravikirana, J. Vanaja, K. Laha, S. Saroja, T. Jayakumar, M.D. Mathew, E. Rajendrakumar
2013 Procedia Engineering  
Replacement of Mo and Nb by W and Ta in modifie reduced activity and improved mechanical properties comprises of the substructural changes and precipi focusses on the effect of W and Ta on microstructura 0.1C steels, with W and Ta concentrations varying fr 1.4 or 2%, was beneficial to retain lath structure a Detailed microstructural investigation of the steesl coarsening of M 23 C 6 carbides than just thermal expo Increase in W was found to be useful to control th precipitate size showed no
more » ... size showed no significant change.
doi:10.1016/j.proeng.2013.03.257 fatcat:kb2vxazoqjdnljbagpy6euisk4