论文标题
一种新的高通量方法，使用合金设计和热处理优化的添加剂制造
A new high-throughput method using additive manufacturing for alloy design and heat treatment optimization
论文作者
论文摘要
许多由增材制造（AM）制造的合金都需要仔细设计后加热处理，这是微观结构工程必不可少的步骤，以进一步提高性能。我们通过在受到监测的梯度温度区域中制造长杆样品进行的长杆样品进行相转化研究，以加速AM合金的后处理后处理，从而开发了高通量方法。该方法已被证明有效地确定峰值硬度的老化温度。我们观察到，通过激光粉床融合所研究的超合金的降水加强主要是为主导，并且晶粒尺寸的变化对605至825 Celcius之间的温度不敏感。这种新方法可以应用于AM制造的其他材料的热治疗优化，并进一步帮助新的合金开发。
Many alloys made by Additive Manufacturing (AM) require careful design of post-heat treatment as an indispensable step of microstructure engineering to further enhance the performance. We developed a high-throughput approach by fabricating a long-bar sample heat-treated under a monitored gradient temperature zone for phase transformation study to accelerate the post-heat treatment development of AM alloys. This approach has been proven efficient in determining the aging temperature with peak hardness. We observed that the precipitation strengthening is predominant for the studied superalloy by laser powder bed fusion, and the grain size variation is insensitive on temperature between 605 and 825 Celcius. This new approach can be applied to post-heat treatment optimization of other materials made by AM, and further assist new alloy development.
