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国内变形高温合金研制进展
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Research Progress of Wrought Superalloys in China
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图4. 直径406和508 mm的GH4720Li合金铸锭中心部位纵向高倍组织 |
Fig.4. Longitudinal section microstructures of centers of GH4720Li ingots(a1~a3) diameter 406 mm ingot (b1~b3) diameter 508 mm ingot |
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