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()
)
图9. 采用不同激光功率制备的René 88DT高温合金试样晶粒组织
(a-c) 200 W (d-f) 300 W (g-i) 400W
Fig.9. Grain structures of selective laser melted René 88DT specimens fabricated with different laser powers in YOZ sections (a, d, g), XOZ sections (b, e, h), and XOY sections (c, f, i)
