| 10Ni5CrMoV钢错位同步双面双弧焊接接头抗低温脆断性能 |
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| 引用本文： | 刘露,王加友,李大用,张广军. 10Ni5CrMoV钢错位同步双面双弧焊接接头抗低温脆断性能[J]. 焊接学报, 2016, 37(8): 109-113 |
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| 作者姓名： | 刘露 王加友 李大用 张广军 |
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| 作者单位： | 1.江苏科技大学 江苏省先进焊接技术重点实验室, 镇江 212003 |
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| 基金项目： | 国家自然科学基金资助项目(51175119，51575133) |
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| 摘 要： | 文中采用系列温度冲击试验、动态撕裂（Dynamic Tear, DT）试验和落锤试验研究了10Ni5CrMoV钢错位同步双面双弧焊接接头的抗低温脆断性能.结果表明，10Ni5CrMoV钢双面双弧焊接接头抗脆性转变能力满足服役要求.双面双弧焊接接头的熔合线位置的冲击吸收功满足10Ni5CrMoV钢焊接接头Akv（-50℃）≥47 J的技术指标要求，且余量较大；-1℃时焊接接头动态撕裂能最低值为1 150 J，高于配套焊接材料0℃时DT功大于644 J的要求；落锤试验确定10Ni5CrMoV钢焊缝金属无塑性转变温度（Nil-Ductility Temperature）为-80℃，焊缝的弹性断裂转变温度Fracture Transtiton of Elastic（FTE）为-47℃，全塑性断裂转变温度Farcture Transition Temperature（FTP）为-14℃.
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| 关 键 词： | 10Ni5CrMoV钢 低温韧性 双面双弧 |
| 收稿时间： | 2014-05-06 |
Low temperature brittle fracture resistance of asymmetrical synchronous double-sided arc welded joint of 10Ni5CrMoV steel |
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| LIU Lu,WANG Jiayou,LI Dayong and ZHANG Guangjun. Low temperature brittle fracture resistance of asymmetrical synchronous double-sided arc welded joint of 10Ni5CrMoV steel[J]. Transactions of The China Welding Institution, 2016, 37(8): 109-113 |
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| Authors: | LIU Lu WANG Jiayou LI Dayong ZHANG Guangjun |
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| Affiliation: | 1.Key Laboratory of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China2.State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Low temperature brittle fracture resistance of asymmetrical synchronous double-sided arc welded (DSAW) joint of 10Ni5CrMoV steel was investigated by series temperature impact test, dynamic tear test and drop hammer test. The results show that DSAW joints of steel 10Ni5CrMoV have a practicable brittle fracture resistance. The impact energy value on the fusion line of DSAW joint meets the technical requirement of the 10Ni5CrMoV steel (i.e., Akv(-50℃≥47 J) with a large allowance. Minimum of dynamic tearing energy at -1℃ is 1150 J, higher than the standard of 644 J DT work at 0℃. Drop hammer test determines that the nil-ductility transition temperature of weld metal of 10Ni5CrMoV steel is -80℃, elastic fracture transition temperature is -47℃, full plastic fracture transition temperature is -14℃. |
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| Keywords: | 10Ni5CrMoV low temperature toughness double-sided arc welding |
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