首页|Effect of Cerium and Aluminium on the phase stability and properties of polycrystalline Cu-Al-Be shape memory alloys

Effect of Cerium and Aluminium on the phase stability and properties of polycrystalline Cu-Al-Be shape memory alloys

Effect of Cerium and Aluminium on the phase stability and properties of polycrystalline Cu-Al-Be shape memory alloys

扫码查看
原文链接
  • NSTL
  • Elsevier
This study presents the outcomes of an investigation of the effect of wt% of cerium and Aluminium on the phases, crystal structure, microstructure, morphology, phase transformation temperatures, shape recovery ratio and mechanical properties of the polycrystalline Cu-Al-Be shape memory alloys (SMAs). SMAs exhibit martensite phase at room temperature up to 0.49 wt% of Be and >= 0.52 wt% of Be transforms to austenite phase. An increase in cerium by 0, 0.05, 0.1, 0.15 and 0.2 wt% decreases the grain size by 0, 70.87%, 82.73%, 83.8% and 94.6%, respectively. An increase in cerium increases the transformation temperatures owing to the Al-rich secondary precipitates, and the shape recovery ratio reduces. Alloying cerium of 0.1 wt% exhibits a maximum tensile strength of 474 +/- 23 MPa with the ductility of 24.11 +/- 1.42%.

Cu-AI-BeShape memory alloysCeriumGrain refinementCu9Al4MECHANICAL-PROPERTIESRAPID SOLIDIFICATIONGRAIN-REFINEMENTMICROSTRUCTUREMARTENSITENISTABILIZATIONCEBEHAVIOR

Narasimha, Guniputi Bala、Murigendrappa, S. M.

展开 >

Malla Reddy Univ

Natl Inst Technol Karnataka

Cu-AI-Be Shape memory alloys Cerium Grain refinement Cu9Al4 MECHANICAL-PROPERTIES RAPID SOLIDIFICATION GRAIN-REFINEMENT MICROSTRUCTURE MARTENSITE NI STABILIZATION CE BEHAVIOR

2022

10.1016/j.matchar.2021.111590

Materials Characterization

Materials Characterization

EISCI
ISSN：1044-5803
年,卷(期)：2022.183
  • 1
  • 43