正火型V-N-Ti和Nb-V-Ti海工钢焊接粗晶热影响组织和韧性研究
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Study on Microstructure and Toughness of Simulated Coarse Grain Heated Zone in Normalized V-N-Ti and Nb-V-Ti Marine Steel
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图9. 实验用钢模拟粗晶热影响区在-60℃的冲击断口形貌 |
Fig.9. SEM micrographs showing impact fracture surface morphologies. (a) V-N-Ti steel, (b) Nb-V-Ti steel |
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