单晶高温合金表面缺陷焊接修复的研究进展
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郎振乾, 叶政, 杨健, 黄继华
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Research Progress of Repair Technology for Surface Defects of Single Crystal Superalloy
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LANG Zhenqian, YE Zheng, YANG Jian, HUANG Jihua
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表1 几种单晶高温合金基体与熔覆材料的主要化学成分(质量分数, %)
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Table 1 Chemical composition of several single crystal superalloys and cladding materials (mass fraction, %)
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| Grade | Cr | Co | W | Mo | Al | Ti | Ta | Re | Ni | Reference |
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| Substrate | DD32 | 5.0 | 9.0 | 8.6 | 1.1 | 6.0 | - | 4.0 | 4.0 | Bal. | [40] | | Powder | DD32 | 5.0 | 9.0 | 8.6 | 1.1 | 6.0 | - | 4.0 | 4.0 | Bal. | | Substrate | CMSX-4 | 6.5 | 9.0 | 6.0 | 0.6 | 5.6 | 1.0 | 6.5 | 3.0 | Bal. | [41~43] | | Powder | CMSX-4 | 6.5 | 9.0 | 6.0 | 0.6 | 5.6 | 1.0 | 6.5 | 3.0 | Bal. | | Substrate | CSU-B1 | 6.0 | 10.0 | 6.5 | 1.6 | 6.6 | 0.4 | 6.0 | - | Bal. | [39] | | Powder | CSU-B1 | 6.0 | 10.0 | 6.5 | 1.6 | 6.6 | 0.4 | 6.0 | - | Bal. | | Substrate | DD5 | 7.0 | 7.5 | 5.0 | 1.5 | 6.2 | - | 6.5 | 3.0 | Bal. | [36, 37, 44] | | Powder | GH738 | 19.5 | 13.5 | - | 4.2 | 1.4 | 3.0 | - | - | Bal. | | Substrate | DD6 | 4.3 | 9.0 | 8.0 | 2.0 | 5.6 | - | - | 2.0 | Bal. | [36, 44] | | Powder | GH738 | 19.5 | 13.5 | - | 4.2 | 1.4 | 3.0 | - | - | Bal. |
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