| 厚壁复合钢板锥体热成形后冷却速度对组织和性能的影响 |
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| 引用本文： | 张利伟,苑怡,丛轶,张骥,盛美娜,蒋鑫,曲萍. 厚壁复合钢板锥体热成形后冷却速度对组织和性能的影响[J]. 压力容器, 2014, 0(10): 29-33 |
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| 作者姓名： | 张利伟 苑怡 丛轶 张骥 盛美娜 蒋鑫 曲萍 |
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| 作者单位： | 大连中集重化装备有限公司,辽宁大连,116600 |
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| 摘 要： | Q345R＋022Cr19Ni10（94＋4）复合钢板锥体在1030℃加热成形，950℃终止成形后覆层喷水，基层空冷，其基层力学性能试验-20℃冲击韧性不合格，金相检查为网状分布的多边形铁素体＋岛状组织和少量珠光体，晶粒度为9级。重新加热至成形温度浸水冷却，并在700℃回火，获得回火贝氏体组织，结果冲击韧性大幅提高，满足标准和设计要求。
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| 关 键 词： | 厚壁锥体 热成形 冷却速度 网状铁素体 魏氏组织 力学性能 |
Effect of Hot Forming Cooling Rate on Structure and Property of Thick-wall Clad Plate Cone |
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| ZHANG Li-wei,YUAN Yi,CONG Yi,ZHANG Ji,SHENG Mei-na,JIANG Xin,QU Ping. Effect of Hot Forming Cooling Rate on Structure and Property of Thick-wall Clad Plate Cone[J]. Pressure Vessel Technology, 2014, 0(10): 29-33 |
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| Authors: | ZHANG Li-wei YUAN Yi CONG Yi ZHANG Ji SHENG Mei-na JIANG Xin QU Ping |
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| Affiliation: | ( Dalian CIMC Heavy Chemical Equipment Co. , Ltd. , Dalian 116600, China) |
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| Abstract: | The impact toughness under -20 ℃mechanical properties test of Q345R＋022Cr19Ni10（94＋4） clad plate cone base metal is unqualified after hot forming at 1030~950℃with air cooling for base metal and water cooling for alloy cladding.The microstructure is polygonal ferrite＋island structure and small quantity of pearlite.The grain size is 9 grade.After reheating to the hot forming temperature,cooling in the water and tempering at 700 ℃ the tempered bainite is received.The impact toughness highly in-creased and met the standard and design requirements. |
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| Keywords: | thick wall cone hot forming cooling rate network ferrite widmanstaten structure mechanical property |
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