选区激光熔化René 88DT高温合金的晶粒组织及冶金缺陷调控
刘健1,2, 彭钦1,2, 谢建新1,2(
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Grain Structure and Metallurgical Defects Regulation of Selective Laser Melted René 88DT Superalloy
LIU Jian1,2, PENG Qin1,2, XIE Jianxin1,2()
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图7. 采用不同激光功率制备的René 88DT高温合金试样XOZ面沉积道形貌及沉积道深宽比和底部曲率半径随激光功率的变化关系
Fig.7. Deposition track morphologies in XOZ section fabricated with laser powers of 200 W (a), 300 W (b), and 400 W (c), and changes of the ratio of depth to width and curvature radius with laser power (d)
