【摘 要】
：
Based on the microscopic elasticity theory and microscopic diffusion equation, the precipitation progress of the binary alloys including coherent strain energy
【机 构】
：
Dept.of Materials Science and Engineering
【基金项目】
：
国家高技术研究发展计划(863计划);国家自然科学基金
论文部分内容阅读
Based on the microscopic elasticity theory and microscopic diffusion equation, the precipitation progress of the binary alloys including coherent strain energy was studied. The results show that coherent strain has obvious effect on the coherent two-phase morphology and precipitation mechanism. With the increase of coherent strain energy, the particles shape changes from the randomly distributed equiaxed particels to elliptical precipitate shapes, their arrangement orientation increases; in the late stage of precipitation, the particle arrangement presents obvious directionality along the [10] and [01] directions, and the precipitation mechanism of alloy changes from typical spinodal decomposition mechanism to the mixture process which possesses the characteristics of both non-classical nucleation growth and spinodal decomposition mechanisms.
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