高温合金
灰烬
材料科学
接口(物质)
叠加原理
合金
相图
相(物质)
微观结构
选择(遗传算法)
热力学
冶金
计算机科学
复合材料
数学
化学
数学分析
物理
有机化学
毛细管数
人工智能
毛细管作用
作者
V. Hariharan,B. S. Murty,Gandham Phanikumar
出处
期刊:Cornell University - arXiv
日期:2023-01-01
被引量:1
标识
DOI:10.48550/arxiv.2303.07663
摘要
The near-rapid solidification conditions during additive manufacturing can lead to selection of non-equilibrium phases. Sharp interface models via interface response functions have been used earlier to explain the microstructure selection under such solidification conditions. However, most of the sharp interface models assume linear superposition of contributions of alloying elements without considering the non-linearity associated with the phase diagram. In this report, both planar and dendritic Calphad coupled sharp interface models have been implemented and used to explain the growth-controlled phase selection observed at high solidification velocities relevant to additive manufacturing. The implemented model predicted the growth-controlled phase selection in multicomponent alloys, which the other models with linear phase diagram could not. These models are calculated for steels and a Nickel-based superalloy and the results are compared with experimental observations.
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