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10. 采用不同扫描速率制备的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扫描速率的变化关系
Fig.10. Deposition track morphologies in XOZ section fabricated with scanning speeds of 720 mm/s (a), 960 mm/s (b), and 1200 mm/s (c), and changes of the ratio of depth to width and curvature radius with scanning speed (d)
