Abstract
Molybdenum based alloy having a nominal composition Mo-0.5Ti-0.1Zr-0.02C (wt%) popularly known as TZM alloy possess high temperature strength, high creep resistance, low coefficient of thermal expansion and high thermal conductivity. Processed TZM alloy contains TiC, ZrC and complex carbides which inhibit recrystallization at high temperatures and also improve the working conditions. In this study, the effect of sintering temperature, holding time and pressure on densification, microstructure and hardness of the spark plasma sintered TZM alloys were investigated. The sample sintered at 1575 °C for 150 second under 40 MPa exhibited the highest relative density, ∼98%. Microstructural characterization was performed by using FESEM and it was observed that TiC and ZrC dispersed through the microstructure. The average size of precipitates were measured as 7.5 and 3.5 m for TiC and ZrC, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1183-1190 |
| Number of pages | 8 |
| Journal | MRS Advances |
| Volume | 1 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2016 |
Bibliographical note
Publisher Copyright:Copyright © Materials Research Society 2015.
Funding
This work was supported by Scientific Research Project Funds of Istanbul Technical University (Project Number: 38683). The authors thank B. Yavas for his contribution in SPS studies, H. H. Sezer for SEM studies.
| Funders | Funder number |
|---|---|
| Saudi Pharmaceutical Society | |
| Istanbul Teknik Üniversitesi | 38683 |
Keywords
- Mo
- powder metallurgy
- sintering