Sn含量对DD26单晶高温合金组织与性能的影响

金师行, 梅松, 卢玉章, 黄亚奇, 郑伟, 申健, 张健

Effect of Sn on Microstructure and Properties of DD26 Nickel-based Single Crystal Superalloy

JIN Shihang, MEI Song, LU Yuzhang, HUANG Yaqi, ZHENG Wei, SHEN Jian, ZHANG Jian

表2 各区域中元素的占比

Table 2 Elemental composition analysis of different regions (atomic fraction, %)

Region Ni Sn Ti Al C B Cr Co Nb W Mo Hf 1 61.24 0.34 2.46 14.25 8.90 - 3.57 7.01 0.84 1.40 - - 2 52.29 - 1.97 8.82 16.88 - 6.11 8.14 1.82 3.06 0.68 0.24 3 10.06 0.40 0.55 0.93 7.93 45.18 15.35 2.86 1.06 6.61 9.07 - 4 64.06 3.68 1.68 6.82 7.37 - 5.12 7.90 - 1.30 - 2.06