AVANT
发表于 2025-3-30 11:51:28
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拍下盗公款
发表于 2025-3-30 15:17:47
https://doi.org/10.1007/978-3-642-68670-2 properties mainly due to a smaller and more homogeneous prior austenite grain size. Niobium additions enable higher process efficiency by high temperature carburizing. In forging steels microalloying controls the phase transformation during cooling after forging and enables shorter process routes.
botany
发表于 2025-3-30 20:32:49
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ensemble
发表于 2025-3-30 22:42:20
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吹牛需要艺术
发表于 2025-3-31 01:08:00
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SEVER
发表于 2025-3-31 07:30:40
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制度
发表于 2025-3-31 10:45:24
https://doi.org/10.1007/978-3-319-12021-8ements, light microscopy, electron backscatter diffraction, and microhardness testing and other methods. The results show that at the cooling rates of 1°C/s or below, ferrite initially formed and continuously rejecting C into the untransformed austenite, which transforms to C-rich lower bainite at l
JAMB
发表于 2025-3-31 13:52:02
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OCTO
发表于 2025-3-31 18:33:55
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