镍基单晶高温合金的研发进展
张健, 王莉, 谢光, 王栋, 申健, 卢玉章, 黄亚奇, 李亚微

Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys
ZHANG Jian, WANG Li, XIE Guang, WANG Dong, SHEN Jian, LU Yuzhang, HUANG Yaqi, LI Yawei
表1 不同定向凝固工艺制备的单晶铸件组织对比
Table 1 Microstructures of single crystal castings obtained by high rate solidification (HRS), fluidized bed cooling (FBC), and liquid metal cooling (LMC)
DS processAlloyPDAS / μmVolume fraction of porosity / %Average porosity size / μm2
HRSCMSX-4333-3840.072-0.10218.9
FBCCMSX-4248-2750.022-0.0458.8
LMCDD331800.026.8