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3. 选区激光熔化René 88DT高温合金试样的缺陷形貌
(a) No.1, P=200 W (b) No.2, P=250 W (c) No.5, P=400 W(d) No.6, V=720 mm/s (e) No.3, V=960 mm/s (f) No.9, V=1200 mm/s(g) No.10, A=0° (h) No.11, A=67°
Fig.3. Defect morphologies of selective laser melted René 88DT specimens
