Microstructure, properties and hot workability of M300 grade maraging steel
| Autor: | K.V.A. Chakravarthi, N.T.B.N. Koundinya, S.V.S. Narayana Murty, B. Nageswara Rao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Defence Technology, Vol 14, Iss 1, Pp 51-58 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2214-9147 51898195 |
| DOI: | 10.1016/j.dt.2017.09.001 |
| Popis: | This paper presents isothermal uniaxial compression test results of M300 grade maraging steel over a wide range of temperatures (900–1200 °C) and strain rates (0.001–100s−1) to examine hot deformability and concurrent microstructural evolution. Processing map is generated and indicated the optimum processing parameters in the temperature range of 1125°-1200 °C and strain rate range of 0.001–0.1 s−1. High values of the efficiency of power dissipation, microstructural observations and EBSD results indicate softening mechanism to be the occurrence of dynamic recrystallisation. Material constants in a constitutive relation are evaluated from the flow stress data useful in computer modelling. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|