Following (Westbrook JH. Temperature dependence of the hardness of secondary phases common in turbine bucket alloys. Journal of Metals. 1957;209:898-904.), the hardness of Ni3Al is approx. 250 HV, and no significant difference is observed at 800 Celsius degrees.
The hardness of Ni3Al compound differs depending on its structure state. For a fully annealed state it is usually within the range of 250 - 400 HV. However it may be prominently increased through a strain hardening mechanism - even up to 700 HV. You may find some details in my papers that are available on Reaserchgate:
https://www.researchgate.net/publication/263765640_EBSD_and_X-ray_diffraction_study_on_the_recrystallization_of_cold_rolled_Ni3Al_based_intermetallic_alloy
https://www.researchgate.net/publication/262527213_Evolution_of_crystallographic_texture_and_strain_in_a_fine-grained_Ni3Al_%28Zr_B%29_intermetallic_alloy_during_cold_rolling
https://www.researchgate.net/publication/266797960_Differential_speed_rolling_of_Ni3Al_based_intermetallic_alloy__analysis_of_the_deformation_process
Article EBSD and X-ray diffraction study on the recrystallization of...
Article Evolution of crystallographic texture and strain in a fine-g...
Article Differential speed rolling of Ni3Al based intermetallic allo...
You may see the following papers and may be helpful:-
1) "Mechanical properties of Ni3AI and nickel-base alloys with high volume fraction of yl ", D. P. Pope and S. S. Ezz, International Metals Reviews, 1984, Vol. 29, No.3, page 136.
2) "Physical and mechanical metallurgy of Ni3AI and its alloys, N. S. Stoloff, International Materials Reviews, 1989, Vol. 34, NO.4, page 153.
- Badges
- Science topic
- Similar topics
- Engineering
- Materials Engineering
- Annealing
- Metallurgy
- Metals