焊接工艺对奥氏体不锈钢焊接接头应变强化性能的影响
Influence of Welding Technology on Strain Strengthening Properties of Austenitic Stainless Steel Welded Joints
摘 要
用等离子焊、埋弧焊和气体保护焊对不同厚度的国产304不锈钢板进行焊接, 通过三种工艺焊接接头应变强化前后的力学性能和组织变化来研究焊接工艺对奥氏体不锈钢焊接接头应变强化性能的影响。结果表明: 板材和三种焊接接头应变强化后, 屈服强度均增大, 板材和等离子焊焊接接头的其他性能基本不受影响, 埋弧焊和气体保护焊的焊接接头的塑性有不同程度的降低, 低温冲击韧性有一定幅度变化, 组织都没有发生马氏体相变; 焊缝余高和焊缝一次返修对气体保护焊焊接接头的应变强化性能基本没有影响。
奥氏体不锈钢
焊接接头
应变强化
welding technology
austenite stainless steel
welded joint
strain strengthening
Abstract
Plasma welding, submerged arc welding and gas shielded arc welding were used to weld domestic 304 stainless steel plates with different thicknesses. The influences of welding technology on strain strengthening properties of austenitic stainless steel joints were investigated through changes of mechanical properties and microstructures of welding joints by three welding methods before and after strain strengthening. Results show that after being strain strengthened the yield strength of the plates and three welded joints increased, other properties of plates and plasma welded joints were not affected, while the ductility of submerged arc welded joint and gas shielded arc welded joint deteriorated. And the low temperature impact toughness of the welded joints varied in some amplitude. Martensite was not be found. Weld reinforcement and repair had no effect on strain strengthening properties of gas shielded arc welded joints.
中图分类号 TG113
所属栏目 试验研究
基金项目
收稿日期 2012/3/22
修改稿日期 2012/10/1
网络出版日期
作者单位点击查看
备注王步美(1981—), 女, 江苏南京人, 工程师, 硕士。
引用该论文: WANG Bu-mie,CHEN Ting,XU Tao,HE Hua. Influence of Welding Technology on Strain Strengthening Properties of Austenitic Stainless Steel Welded Joints[J]. Materials for mechancial engineering, 2013, 37(2): 29～33
王步美,陈挺,徐涛,何华. 焊接工艺对奥氏体不锈钢焊接接头应变强化性能的影响[J]. 机械工程材料, 2013, 37(2): 29～33
被引情况:
【1】姜勇,巩建鸣,汤鹏杰, "乙烯裂解炉对流段盘管焊接接头开裂原因",腐蚀与防护 35, 750-753(2014)
【2】罗强,陈勇,周军,何琨,任黎平, "304奥氏体不锈钢焊缝低温热老化后的显微组织与力学性能",机械工程材料 38, 31-34(2014)
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参考文献
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【2】毕龙生.压力容器应用进展及发展前景(二)[J].真空与低温, 1999, 5(4): 187-192.
【3】毕龙生.压力容器应用进展及发展前景(三)[J].真空与低温, 2000, 6(1): 1-7.
【4】BRAUTIGAM M. Pressure vessels for cryogenic service — some new aspects of materials and construction [C]//The Seventh International Conference on Pressure Vessel Technology. [S.l]: [s.n], 1992: 887-899.
【5】FAURE A, GOURGEON L. Cryoformed stainless steel pressure vessels for space applications[C]//.Proceedings European conference on spacecraft structures, materials and mechanical testing. Braunschweig Germany: [s.n], 1998: 201-203.
【6】AS 1210 Supplement 2-1999. Cold-Stretched austenic stainless steel vessels [S].
【7】BS EN 13458-2: 2002. Cryogenic vessels-static vacuum insulated vessels-part 2: design, fabrication, inspection and testing [S].
【8】ASME CASE2596-2008. Coldstretching of Austenitic stainless steel pressure vessels section Ⅷ, division 1 [S].
【9】陈挺, 王步美, 徐涛, 等.奥氏体不锈钢压力容器应变强化技术的发展及国外标准比较[J].机械工程材料, 2012, 36(3): 1-4.
【10】刘树勋, 刘宪民, 刘蕤, 等. Cr21Ni6MnN奥氏体不锈钢的应变强化行为[J].钢铁研究学报, 2005, 17(4): 40-44.
【11】胡钢, 许淳淳. 奥氏体304不锈钢微观组织变化与冷加工的关系[J].黄冈师范学院学报, 2002, 22(3): 17-19.
【12】田兴, 田如锦. 奥氏体不锈钢304L和304LN的加工硬化特点[J].大连铁道学院学报, 2001(4): 59-64.
【13】邓阳春, 陈刚, 杨笑峰, 等. 奥氏体不锈钢压力容器的应变强化技术[J].化工机械, 2008, 35(1): 54-59.
【14】周高斌, 郑津祥. 应变强化奥氏体不锈钢低温容器研究[D].杭州: 浙江大学, 2010.
【15】郑津洋, 郭阿宾, 缪存坚, 等. 奥氏体不锈钢深冷容器室温应变强化技术[J]压力容器, 2010(8): 28-32.
【16】许谆谆, 张新生, 胡钢.AISI304不锈钢在冷加工过程中的微观组织变化[J].北京工业大学学报, 2002, 29(6): 27-31.
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