焊接工艺对不锈钢角焊缝连接试件力学性能影响研究

李志林; 杨璐; 崔瑶; 尹飞; 梁耀华

doi:10.6052/j.issn.1000-4750.2020.04.0232

焊接工艺对不锈钢角焊缝连接试件力学性能影响研究

李志林^{1, 2,},
杨璐^{1, 2, ,},
崔瑶^3,,
尹飞^{1, 2,},
梁耀华^{1, 2,}

1.
北京工业大学，城市与工程安全减灾教育部重点实验室，北京 100124
2.
北京工业大学，北京市高层和大跨度预应力钢结构工程技术研究中心，北京 100124
3.
大连理工大学海岸和近海工程国家重点实验室，辽宁，大连 116024

基金项目: 国家自然科学基金优秀青年科学基金项目(51922001)；国家自然科学基金创新研究群体项目(51421005)

详细信息

作者简介:
李志林(1995−)，男，河南人，硕士生，主要从事钢结构研究(E-mail: 1129073821@qq.com)

崔　瑶(1983−)，女，辽宁人，副教授，博士，主要从事钢结构抗震性能研究(E-mail: cuiyao@dlut.edu.cn)

尹　飞(1992−)，男，河北人，博士生，主要从事钢结构研究(E-mail: yinfei622@email.bjut.edu.cn)

梁耀华(1993−)，男，广东人，硕士生，主要从事钢结构研究(E-mail: 260671336@qq.com)

通讯作者:
杨　璐(1982−)，男，湖北人，教授，博士，主要从事钢结构及施工技术研究(E-mail: lyang@bjut.edu.cn)

中图分类号: TG115.6+2
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出版历程
- 收稿日期: 2020-04-14
- 修回日期: 2020-08-29
- 网络出版日期: 2020-09-14
- 刊出日期: 2021-02-24

INVESTIGATION ON THE INFLUENCE OF WELDING PROCESSESON MECHANICAL PROPERTIES OF STAINLESS STEELFILLET WELD CONNECTIONS

LI Zhi-lin^{1, 2,},
YANG Lu^{1, 2, ,},
CUI Yao^3,,
YIN Fei^{1, 2,},
LIANG Yao-hua^{1, 2,}

1.
The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China
2.
Beijing Engineering Research Centre of High-Rise and Large-Span Prestressed Steel Structures, Beijing University of Technology, Beijing 100124, China
3.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China

摘要

摘要: 对12个奥氏体型及12个双相型不锈钢正面角焊缝和侧面角焊缝连接试件进行了单调拉伸试验，考察了不同焊接工艺对角焊缝连接力学性能的影响。结果表明：采用氩弧焊焊接工艺的不锈钢角焊缝试件破坏面与电弧焊焊接工艺的试件破坏面形状相差较大，后者破坏面更加光滑；同时由于受到复杂应力的作用，正面角焊缝试件的真实破坏角度并不为相关规范规定的理论值45°；对于奥氏体型不锈钢角焊缝，氩弧焊试件与电弧焊试件的强度比分别为1.03 (正面角焊缝试件)及1.13 (侧面角焊缝试件)，相对变形量之比为1.46及1.11；而对于双相型不锈钢角焊缝，两者的强度比分别为1.12和1.04，相对变形量之比为1.66及1.45；氩弧焊试件表现出了更好的力学性能。对于两种不锈钢材料，正面角焊缝强度均远大于侧面角焊缝的强度，建议在工程设计和相关规范的编制/修订中考虑正面角焊缝强度提高的影响。
- 不锈钢 /
- 角焊缝连接件 /
- 氩弧焊 /
- 电弧焊 /
- 力学性能
Abstract: In order to study the effect of different welding processes on mechanical properties of stainless steel fillet weld connections, the monotonic tensile tests of 12 austenitic and 12 duplex stainless steel specimens were carried out. The results show that the failure surface of specimens made by TIG (Tungsten Inert Gas Welding) is quite different from that of specimens made by SMAW (Shielded Metal Arc Welding), and the latter is much smoother. Besides, the true failure angle of the transverse fillet weld connections is not the theoretical value of 45° due to the influence of the complex stress. For austenitic stainless steel, the strength ratios of specimens made by TIG to SMAW are 1.03 (for transverse fillet weld connections) and 1.13 (for longitudinal fillet weld connections), and the ratios of relative deformation are 1.46 and 1.11. For duplex stainless steel, the strength ratios are 1.12 and 1.04, meanwhile the relative deformation ratios are 1.66 and 1.45. The connections made by TIG show better mechanical properties. For the two stainless steel, the strengths of transverse fillet weld connections are much better than those of the longitudinal fillet weld connections, so it is suggested that the influence of the increase of the strength of transverse fillet weld connections be taken into account in the compilation or revision of the related specifications.
- stainless steel /
- fillet weld connection /
- TIG (tungsten inert gas arc welding) /
- SMAW (shielded metal arc welding) /
- mechanical properties

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图 1 角焊缝连接件示意图　/mm

Figure 1. Dimensions of fillet weld connection

下载: 全尺寸图片幻灯片

图 2 试验加载装置

Figure 2. Test setup

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图 3 试件测点布置图

Figure 3. Location of measuring points

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图 4 试件破坏面示意图

Figure 4. Failure surface of specimens

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图 5 角焊缝真实断裂角度

Figure 5. Real fracture angle of fillet weld

下载: 全尺寸图片幻灯片

图 6 奥氏体型不锈钢试件荷载-位移曲线

Figure 6. Load-displacement curve of austenitic stainless steel specimens

下载: 全尺寸图片幻灯片

图 7 双相型不锈钢试件荷载-位移曲线

Figure 7. Load-displacement curve of duplex stainless steel specimens

下载: 全尺寸图片幻灯片

表 1 试件实测尺寸

Table 1 Measurements of specimens

试件编号	焊缝条数n	焊缝平均长度l_w/mm	焊缝平均焊脚尺寸h_f/mm	焊缝平均断裂面宽度h_e/mm
AST-1	2	49.83	6.32	2.94
AST-2		49.63	5.80	3.16
AST-3		49.71	5.95	3.31
ATT-1	2	49.78	6.60	2.41
ATT-2		49.71	6.68	2.56
ATT-3		49.53	6.69	2.55
ASL-1	4	52.05	6.46	3.72
ASL-2		51.30	6.24	3.83
ASL-3		51.04	6.26	4.00
ATL-1	4	50.21	5.73	3.04
ATL-2		50.13	5.81	3.24
ATL-3		49.48	5.63	3.23
DST-1	2	49.98	6.06	3.17
DST-2		50.00	5.98	3.17
DST-3		49.76	5.98	2.84
DTT-1	2	49.89	6.04	3.32
DTT-2		50.43	5.94	2.60
DTT-3		50.16	6.03	2.62
DSL-1	4	50.96	5.96	3.53
DSL-2		50.57	6.14	3.57
DSL-3		50.59	5.98	3.56
DTL-1	4	50.76	5.87	3.32
DTL-2		50.14	5.72	3.01
DTL-3		50.69	5.86	3.25

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表 2 角焊缝真实断裂角度

Table 2 Real fracture angle of fillet weld

电弧焊试件	试件破坏角度平均值θ/(°)	每组试件破坏角度平均值θ_avg/(°)	氩弧焊试件	试件破坏角度平均值θ/(°)	每组试件破坏角度平均值θ_avg/(°)
AST-1	33.0	33.1	ATT-1	32.3	32.2
AST-2	32.9		ATT-2	31.8
AST-3	33.5		ATT-3	32.4
ASL-1	45.7	45.2	ATL-1	44.8	45.0
ASL-2	45.2		ATL-2	45.4
ASL-3	44.7		ATL-3	44.9
DST-1	32.0	32.5	DTT-1	32.3	32.9
DST-2	32.8		DTT-2	32.4
DST-3	32.6		DTT-3	33.9
DSL-1	45.0	45.6	DTL-1	45.0	45.8
DSL-2	45.2		DTL-2	46.9
DSL-3	46.6		DTL-3	45.6

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表 3 奥氏体型不锈钢试件试验结果

Table 3 Test results of austenitic stainless steel specimens

试件编号	极限强度 τ_u_-s/MPa	平均极限强度 τ_u_-s,avg/MPa	相对变形量 δ_s	平均相对变形量δ_s_,avg	试件编号	极限强度 τ_u_-t/MPa	平均极限强度 τ_u_-t,avg/MPa	相对变形量 δ_t	平均相对变形量δ_t_,avg	τ_u_-t,avg/ τ_u_-s,avg	δ_t_,avg/ δ_s_,avg
AST-1	763.6	690.40	0.49	0.45	ATT-1	690.7	710.30	0.68	0.66	1.03	1.46
AST-2	660.5		0.46		ATT-2	735.0		0.66
AST-3	661.9		0.41		ATT-3	705.3		0.63
ASL-1	385.0	385.50	2.98	2.92	ATL-1	452.3	437.00	3.19	3.24	1.13	1.11
ASL-2	384.0		3.16		ATL-2	435.1		3.35
ASL-3	387.4		2.67		ATL-3	423.5		3.18
AST/ASL	−	1.79	−	0.15	ATT/ATL	−	1.62	−	0.20	−	−

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表 4 双相型不锈钢试件试验结果

Table 4 Test results of duplex stainless steel specimens

试件编号	极限强度 τ_u-s/MPa	平均极限强度 τ_u-s,avg/MPa	相对变形量 δ_s	平均相对变形量δ_s,avg	试件编号	极限强度 τ_u-t/MPa	平均极限强度 τ_u-t,avg/MPa	相对变形量 δ_t	平均相对变形量δ_t,avg	τ_u-t,avg/ τ_u-s,avg	δ_t,avg/ δ_s,avg
DST-1	909.3	920.70	0.30	0.32	DTT-1	869.8	1031.50	0.46	0.53	1.12	1.66
DST-2	828.3		0.29		DTT-2	1126.1		0.59
DST-3	1024.5		0.38		DTT-3	1098.6		0.54
DSL-1	587.9	571.70	1.33	1.39	DTL-1	605.0	595.30	1.96	2.01	1.04	1.45
DSL-2	553.1		1.37		DTL-2	582.8		2.10
DSL-3	574.0		1.47		DTL-3	598.2		1.97
DST/DSL	−	1.61	−	0.23	DTT/DTL	−	1.73	−	0.26	−	−

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参考文献(26)

[1]	Zheng B F, Shu G P, Jiang Q L . Experimental study on residual stresses in cold rolled austenitic stainless steel hollow sections [J]. Journal of Constructional Steel Research, 2019, 152: 94 − 104. doi: 10.1016/j.jcsr.2018.04.021
[2]	杨璐, 卫璇, 张有振, 等. 不锈钢母材及其焊缝金属材料单拉本构关系研究[J]. 工程力学, 2018, 35(5): 134 − 139. Yang Lu, Wei Xuan, Zhang Youzhen, et al. Research on the tensile stress-strain relation of stainless steel base material and its weld metal material [J]. Engineering Mechanics, 2018, 35(5): 134 − 139. (in Chinese)
[3]	常笑, 杨璐, 王萌, 等. 循环荷载下奥氏体型和双相型不锈钢材料本构关系研究[J]. 工程力学, 2019, 36(5): 137 − 147. Chang Xiao, Yang Lu, Wang Meng, et al. Study on constitutive model of austenitic stainless steel [J]. Engineering Mechanics, 2019, 36(5): 137 − 147. (in Chinese)
[4]	杨璐, 宁克洋, 班慧勇, 等. 不锈钢焊接箱形截面压弯构件弯曲屈曲试验研究[J]. 工程力学, 2018, 35(12): 143 − 150. Yang Lu, Ning Keyang, Ban Huiyong, et al. Experimental research on flexural buckling of stainless steel welded box-section beam-columns [J]. Engineering Mechanics, 2018, 35(12): 143 − 150. (in Chinese)
[5]	李华峰, 朱忠义, 束伟农, 等. 江门中微子实验中心探测器主体不锈钢结构设计研究[J]. 建筑结构, 2018, 48(20): 92 − 97. Li Huafeng, Zhu Zhongyi, Shu Weinong, et al. Design and research of the main stainless steel structure of the central detector of Jiangmen Underground Neutrino Observatory [J]. Building Structure, 2018, 48(20): 92 − 97. (in Chinese)
[6]	董彪, 罗建成, 魏峻峰, 等. “天衣无缝”的技艺设计—青岛胶东国际机场航站楼连续焊接不锈钢屋面应用分析[J]. 建筑技艺, 2019(4): 121 − 123. Dong Biao, Luo Jiancheng, Wei Junfeng, et al. A seamless heavenly robe of architecture technique: application analysis of continuously welded stainless steel roofing in Qingdao Jiaodong International Airport Terminal [J]. Architecture Technique, 2019(4): 121 − 123. (in Chinese)
[7]	Butler L J, Kulak G L. Strength of fillet welds as a function of direction of load [J]. Welding Journal, 1971, 50(5): 231s − 234s.
[8]	Miazga G S, Kennedy D J L. Behaviour of fillet welds as a function of the angle of loading [J]. Canadian Journal of Civil Engineering, 1989, 16(4): 583 − 599. doi: 10.1139/l89-089
[9]	Ng A K F, Deng K, Grondin G Y, et al. Behavior of transverse fillet welds: Experimental program [J]. Engineering Journal-American Institute of Steel Construction Inc, 2004, 41(2): 39 − 54.
[10]	魏晨熙. Q460高强度钢材焊缝连接受力性能和计算模型研究 [D]. 北京: 清华大学, 2013. Wei Chenxi. Research on the structural performance and calculation model of Q460 high strength steel weld connection [D]. Beijing: Tsinghua University, 2013. (in Chinese)
[11]	孙铭泽, 张大长, 李布辉, 等. Q420 高强钢角焊缝承载力特性试验及模拟分析[J]. 南京工业大学学报: 自然科学版, 2014, 36(6): 99 − 103. Sun Mingze, Zhang Dachang, Li Buhui, et al. Test and simulation analysis on bearing capacity of Q420 high-strength steel fillet weld [J]. Journal of Nanjing Tech University (Natural Science Edition), 2014, 36(6): 99 − 103. (in Chinese)
[12]	范圣刚, 郑家珵, 孙文隽, 等. S30408奥氏体不锈钢高温力学性能试验研究[J]. 工程力学, 2017, 34(4): 172 − 181, 191. Fan Shenggang, Zheng Jiacheng, Sun Wenjun, et al. Experimental investigation on mechanical properties of S30408 austenitic stainless steel at elevated temperatures [J]. Engineering Mechanics, 2017, 34(4): 172 − 181, 191. (in Chinese)
[13]	袁焕鑫, 王元清, 石永久, 等. 焊接箱形截面不锈钢柱相关稳定性能分析[J]. 工程力学, 2015, 32(9): 84 − 91. Yuan Huanxin, Wang Yuanqing, Shi Yongjiu, et al. Behavior of interactive buckling in welded stainless steel box section columns [J]. Engineering Mechanics, 2015, 32(9): 84 − 91. (in Chinese)
[14]	金晓兰, 邹若梦, 董军. 不锈钢贴角焊缝连接试验及设计建议[J]. 建筑结构, 2013, 43(9): 78 − 82. Jin Xiaolan, Zou Ruomeng, Dong Jun. Experiments and design suggestions for stainless steel fillet connections [J]. Building Structure, 2013, 43(9): 78 − 82. (in Chinese)
[15]	杨璐, 张有振, 周晖, 等. 双相型S22053不锈钢角焊缝连接拉伸试验研究[J]. 土木工程学报, 2016, 49(11): 19 − 25. Yang Lu, Zhang Youzhen, Zhou Hui, et al. Tensile test study on fillet weld connections of S22053-grade duplex stainless steel [J]. China Civil Engineering Journal, 2016, 49(11): 19 − 25. (in Chinese)
[16]	张有振, 杨璐, 周晖, 等. 双相型不锈钢角焊缝连接承载性能有限元分析[J]. 工程力学, 2017, 34(9): 110 − 118. Zhang Youzhen, Yang Lu, Zhou Hui, et al. Finite element analyses of loading capacity of fillet-weld connections fabricated from duplex stainless steel [J]. Engineering Mechanics, 2017, 34(9): 110 − 118. (in Chinese)
[17]	杨璐, 张有振, 周晖, 等. 奥氏体型S30408不锈钢角焊缝连接拉伸试验研究[J]. 建筑结构学报, 2017, 38(2): 48 − 54. Yang Lu, Zhang Youzhen, Zhou Hui, et al. Tensile test on fillet weld connections of austenitic stainless steel grade S30408 [J]. Journal of Building Structures, 2017, 38(2): 48 − 54. (in Chinese)
[18]	张有振, 杨璐, 赵梦晗, 等. 奥氏体型S30408不锈钢角焊缝连接承载性能有限元分析[J]. 建筑钢结构进展, 2018, 20(1): 39 − 47, 72. Zhang Youzhen, Yang Lu, Zhao Menghan, et al. Finite element analysis of loading capacity of fillet weld connections fabricated using austenitic gradeS30408 stainless steel [J]. Progress in Steel Building Structures, 2018, 20(1): 39 − 47, 72. (in Chinese)
[19]	Yang L, Cui Y, Wei X, et al. Strength of duplex stainless steel fillet welded connections [J]. Journal of Constructional Steel Research, 2019, 152: 246 − 260. doi: 10.1016/j.jcsr.2018.08.031
[20]	中国工程建设标准化协会. CECS 410: 2015, 不锈钢结构技术规程 [S]. 北京: 中国计划出版社, 2015. China Association for Engineering Construction Standardization. CECS 410: 2015, Technical specification for stainless steel [S]. Beijing: China Planning Press, 2015. (in Chinese)
[21]	Lee H C, Hwang B K, Kim T S. Ultimate strength of austenitic stainless steel fillet-welded connections with weld metal fracture [J]. Thin-Walled Structures, 2017, 116: 145 − 153. doi: 10.1016/j.tws.2017.03.008
[22]	SEI/ASCE 8-02, American society of civil engineers specification for the design of cold-formed stainless steel structural members [S]. Virginia: American Society of Civil Engineers, 2002.
[23]	Fortan M, Dejans A, Debruyne D, et al. The strength of stainless steel fillet welds using GMAW [C]. Stainless Steel in Structures – Fifth International Experts Seminar, London, UK, 2017.
[24]	EN 1993-1-4, Eurocode 3: Design of steel structures-part 1-4: General rules: Supplementary rules for stainless steel [S]. Brussels: European Committee for Standardization (CEN), 2006.
[25]	施刚, 陈玉峰. 高强度钢材焊缝连接试验研究[J]. 工业建筑, 2016, 46(7): 47 − 51. Shi Gang, Chen Yufeng. Investigation on high strength steel welded connections [J]. Industrial Construction, 2016, 46(7): 47 − 51. (in Chinese)
[26]	中华人民共和国住房和城乡建设部. GB 50017−2017, 钢结构设计标准 [S]. 北京: 建筑工业出版社, 2018. Ministry of Housing and Urban-Rural Development of the People's Republic of China. GB 50017−2017, Standard for design of steel structures [S]. Beijing: China Building Industry Press, 2018. (in Chinese)

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