850 ℃涡轮盘用新型变形高温合金GH4975挤压棒材热变形规律研究
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Hot Deformation Characteristics of Novel Wrought Superalloy GH4975 Extruded Rod Used for 850 ℃ Turbine Disc
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图8. GH4975合金在不同变形条件下微观组织的TEM像 |
Fig.8. TEM images of microstructures of GH4975 superalloy deformed at 1150 ℃, 0.001 s-1 (a), 1180 ℃, 0.1 s-1 (c) and 1180 ℃, 1 s-1 (d); Hereinto, Fig.8b is the selected area electron diffraction pattern (SAEDP) of Fig.8a, which is to identify the γ′ precipitates |
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