The melt pool dimensions and pool-shapes that are possible with directed beam-heating are explored with a collapsed parameter model, and compared with experimental results. The peak temperatures, temperature gradients and fluid flow velocities/cells are calculated for various beam parameters. The key solidification parameters including the interface velocity are discussed for various beam powers, beam size and interaction times. The new Maximum Entropy Production Rate (MEPR) solidification theory and its successful predictions are reviewed. The ensuing prediction of the scale of the smallest scale of the microstructure is discussed.

中文翻译：

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快速固化和表面形貌，用于通过光束表面加热进行增材制造

利用塌陷参数模型探索了定向射束加热可能产生的熔池尺寸和熔池形状，并将其与实验结果进行了比较。针对各种射束参数计算了峰值温度，温度梯度和流体流速/单元。对于各种光束功率，光束尺寸和相互作用时间，讨论了包括界面速度在内的关键凝固参数。审查了新的最大熵生产率（MEPR）凝固理论及其成功的预测。讨论了微观结构最小尺度的尺度预测。