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Ductile Nb alloys with reduced density and cost
Ductile Nb alloys with reduced density and cost
- Source :
- Journal of Alloys and Compounds. 808:151685
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Several Nb-based alloys containing Ti, Mo and W were produced and their microstructure, phase composition and mechanical properties in the temperature range of 23–1200 °C were reported and compared with a high-strength commercial Nb alloy C-3009, which contains Hf and W alloying elements. Replacement of Hf with Ti and W with Mo led to alloys with considerably reduced density and cost, as well as with reduced micro-segregation of the alloying elements. The strengthening effect from W was higher than from Mo at temperatures above ∼600 °C and more amount of Mo was required to compensate the strength decrease. The strengthening effects from Hf and Ti were comparable at temperatures up to 1000 °C; however, at 1200 °C the effect from Hf was superior. It was concluded that the Nb–Mo–Ti system can be used as a baseline for the development of high strength, high-temperature alloys using alloying with other elements.
- Subjects :
- Materials science
Mechanical Engineering
Metallurgy
Alloy
Metals and Alloys
02 engineering and technology
engineering.material
Atmospheric temperature range
010402 general chemistry
021001 nanoscience & nanotechnology
Microstructure
01 natural sciences
0104 chemical sciences
Mechanics of Materials
Phase composition
Materials Chemistry
engineering
0210 nano-technology
Subjects
Details
- ISSN :
- 09258388
- Volume :
- 808
- Database :
- OpenAIRE
- Journal :
- Journal of Alloys and Compounds
- Accession number :
- edsair.doi...........cc2106a7cdd20c5e802dcbdaf30d4877
- Full Text :
- https://doi.org/10.1016/j.jallcom.2019.151685