Analysis of microstructure and microhardness of Zr-2.5Nb processed by High-Pressure Torsion (HPT)
โ Scribed by Companhoni, Mychelle Vianna Pereira; Matheus, Jose Ricardo Gomes; Marcondes, Tatiana Lisboa; Pinto, Andre Luiz
- Book ID
- 115458746
- Publisher
- Springer
- Year
- 2012
- Tongue
- English
- Weight
- 960 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0022-2461
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## Abstract Zirconium at normal conditions (room temperature and atmospheric pressure) has an HCP structure with lattice parameters __a__โ=โ3.2313โร and __c__โ=โ5.1477โร (ฮฑโphase). During loading under hydrostatic conditions in diamond anvil cells, a transition from the __ฮฑ__ โphase to an __ฯ__โpha
Experiments were conducted on an Al-3 wt.% Mg-0.2 wt.% Sc alloy and pure Cu to evaluate the effect of high-pressure torsion (HPT). The results show that very substantial grain refinement is achieved in both materials with as-strained grain sizes of โผ150 and โผ140 nm, respectively. Microhardness measu