Annealing-induced microstructural evolution in melt-spun Al-10% Sr alloy

作者：Zhang ZH^*; Bian XF; Wang Y; Liu XF; Zhang JY

来源：Materials Characterization, 2002, 48(4): 297-303.

DOI：10.1016/S1044-5803(02)00235-8

• Al-10% Sr alloy
• annealing
• transmission electron microscopy

In the present work, the annealing-induced microstructural evolution of melt-spun Al-10% Sr (in wt.%) alloy has been investigated, using differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). A monotonically decreasing signal was observed on the DSC trace of the melt-spun Al-10% Sr alloy isothermally annealed at 600 degreesC, indicating that the microstructural. evolution is a gain growth process rather than one of nucleation and growth. The nanoscale Al4Sr phase in as-quenched Al-10% Sr alloy grows with increasing annealing temperature and time. Furthermore, the Al4Sr particles are not randomly oriented and grow along a certain direction with respect to the Al matrix.

• 出版日期2002-6
• 单位山东大学