An in situ investigation of the deformation mechanisms in a Beta-quenched Ti-5Al-5V-5Mo-3Cr alloy

Autor: Barriobero-Vila, P., Gussone, J., Kelm, K., Haubrich, J., Stark, A., Schell, N., Requena, G.
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Barriobero-Vila, P.; Gussone, J.; Kelm, K.; Haubrich, J.; Stark, A.; Schell, N.; Requena, G.: An in situ investigation of the deformation mechanisms in a Beta-quenched Ti-5Al-5V-5Mo-3Cr alloy. In: Materials Science and Engineering A. Vol. 717 (2018) 134-143. (DOI: /10.1016/j.msea.2018.01.077 )
ISSN: 0921-5093
DOI: 10.1016/j.msea.2018.01.077
Popis: The sequence of activation of deformation mechanisms in a near-β Ti-5Al-5Mo-5V-3Cr alloy quenched from the β-field is investigated as a function of strain during uniaxial compression at 0.001 s−1 up to ε = 0.041. Bulk in situ high energy synchrotron X-ray diffraction is applied to follow continuously the evolution of the microstructure of the alloy during deformation and is complemented with metallographic analysis. Stress induced β → α″ transformation takes place together with grain rotation of β upon reaching the yield stress of the alloy at ε = 0.021. During further loading, formation of β sub-grain cells is activated at ε ≥ 0.03. The stress-induced martensite forms with a strong texture of {200} α″ planes perpendicular to the compression direction.
Databáze: OpenAIRE