搭接工艺对选区激光熔化镍基单晶高温合金DD491晶体取向与微观组织的影响
Effects of Overlapping Process on Grain Orientation and Microstructure of Nickel-Based Single-Crystal Superalloy DD491 Fabricated by Selective Laser Melting
搭接工艺对选区激光熔化镍基单晶高温合金DD491晶体取向与微观组织的影响 |
| 张振武, 李继康, 许文贺, 沈沐宇, 戚磊一, 郑可盈, 李伟, 魏青松 |
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Effects of Overlapping Process on Grain Orientation and Microstructure of Nickel-Based Single-Crystal Superalloy DD491 Fabricated by Selective Laser Melting |
| ZHANG Zhenwu, LI Jikang, XU Wenhe, SHEN Muyu, QI Leiyi, ZHENG Keying, LI Wei, WEI Qingsong |
| 图13 熔池内晶粒形态演变与固-液凝固界面成分过冷关系示意图 |
| Fig.13 Schematics of the relations between grain evolution (a) and subcooling of the solid-liquid solidification stray interface (b), dendrite interface (c), and parabolic interface (d) front (G—temperature gradient at the solid-liquid solidification interface, TL—temperature of liquid phase) |
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