选区激光熔化 γ' 相强化镍基高温合金裂纹形成机理与抗裂纹设计研究进展
Research Progress on the Crack Formation Mechanism and Cracking-Free Design of γ' Phase Strengthened Nickel-Based Superalloys Fabricated by Selective Laser Melting
选区激光熔化 γ' 相强化镍基高温合金裂纹形成机理与抗裂纹设计研究进展 |
| 祝国梁, 孔德成, 周文哲, 贺戬, 董安平, 疏达, 孙宝德 |
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Research Progress on the Crack Formation Mechanism and Cracking-Free Design of γ' Phase Strengthened Nickel-Based Superalloys Fabricated by Selective Laser Melting |
| ZHU Guoliang, KONG Decheng, ZHOU Wenzhe, HE Jian, DONG Anping, SHU Da, SUN Baode |
| 图3 不可焊高Al、Ti镍基高温合金晶界处裂纹尖端的原子重构结果(箭头1所示为穿过γ'/GB/γ界面的一维元素分布)[ |
| Fig.3 Atom probe reconstruction from a random high angle grain boundary in the cracked columnar region of a non-weldable nickel-based superalloy with high aluminum and titanium content (a), one-dimensional composition profiles across the γ'/GB/γ interface as denoted by arrow 1 in Fig.3a (b, c) (GB—grain boundary)[ |
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