超高强度船体结构钢焊接性的研究现状和趋势
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雷玄威,周栓宝,黄继华
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Current Status and Development Trend on Weldability of Ultra-high Strength Hull Structure Steel
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Xuanwei LEI,Shuanbao ZHOU,Jihua HUANG
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| 表8 大热量输入条件下超高船体结构钢热影响区粗晶区的夏比冲击功 |
| Table 8 Charpy V-notch (CVN) impact value in CGHAZs of UHSHS steels under large heat input |
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| Steels | Heat input /kJ·cm–1 | Method | AGS of CGHAZ /μm | fGB in CGHAZ | fM-A in CGHAZ | CVN/J |
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| F460[35] | 50 | Thermal simulation | ~60 | ~0.75–0.85 | | AKV–60℃ 74 | | E550[46] | ~65 | Thermal simulation | ~45 | ~0.80–0.90 | | AKV–40℃ 16 | | F550[11] | 50 | Submerged arc welding | ~60 | ~0.65–0.75 | ~0.15–0.20 | 55≤AKV–60℃ ≤67 | | E690[47] | 50 | Submerged arc welding | ~40 | ~0.20–0.35 | ~0.10–0.15 | 40≤AKV–40℃≤47 | | F690[38,48] | ~35 | Thermal simulation | ~60 | | | AKV–60℃ 26 | | HY85[41] | 50 | Thermal simulation | ~82 | ~0.40–0.50 | ~0.05–0.10 | AKV–50℃ 27 | | HSLA80[49] | 40 | Submerged arc welding | | | ~0.10 | AKV–50℃ 62 AKV–50℃ 44 | | HSLA115[50] | 33.5 | Submerged arc welding | | | | AKV–51℃ ≤111 |
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