High temperature creep behavior of friction stir welding joints for CLAM steel

TIAN Chaobo; YANG Xinqi; LI Shengli; TANG Wenshen; LI Huijun

doi:10.12073/j.hjxb.20200811003

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2021 > 42(2): 38-45. > DOI: 10.12073/j.hjxb.20200811003

TIAN Chaobo, YANG Xinqi, LI Shengli, TANG Wenshen, LI Huijun. High temperature creep behavior of friction stir welding joints for CLAM steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(2): 38-45. DOI: 10.12073/j.hjxb.20200811003

Citation:

PDF (1443 KB)

High temperature creep behavior of friction stir welding joints for CLAM steel

Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300350, China

More Information

Received Date: August 10, 2020
Available Online: April 06, 2021

Graphical Abstract

Abstract

Abstract

The uniaxial creep tensile strength, fracture features and microstructures of friction stir welded joint with postweld heat treatment for CLAM steel have been investigated in the range of the creep applied stress from 180 MPa to 300 MPa at 823 K condition. It is found that the creep life of the FSW joints of CLAM steel increase from 1.5 h, 19.2 h and 883 h to above 6769 h respectively, when the creep stresses decrease from 300 MPa, 260 MPa and 220 MPa to 180 MPa. The inter critical heat affected zone is the weakest zone of creep rupture resistance for the FSW joint of CLAM steel, the joints mainly exhibit dislocation-controlled creep deformation mechanism and the transgranular ductile fracture mode. The microstructures of inter critical heat affected zone produce recovery and subgrain boundaries are formed in here during creep process, which result in the decrease of dislocation strengthening action; the coarser M₂₃C₆carbides is produced or the coarser Laves phase around the M₂₃C₆ carbides is formed, which result in the reduction of precipitation and solution strengthening action, these issues are the main reasons for the deterioration of the creep performance of FSW joints. The creep fracture strength of FSW joint is estimated to be 156 MPa in the condition of 1 × 10⁵ h creep life according to the Monkman-Grant equation, which reaches 88 % of the strength of base metal.
- low activation steel,
- friction stir welding,
- creep performance,
- microstructure,
- life prediction

FullText(HTML)

References (19)

References

黄群英, 李春京, 刘少军, 等. 中国实验包层模块材料研发进展[J]. 核科学与工程, 2009, 29(3): 260 − 265. doi: 10.3321/j.issn:0258-0918.2009.03.011

Huang Qunying, Li Chunjing, Liu Shaojun, et al. R & D status of materials for test blanket modules in China[J]. Nuclear Science and Engineering, 2009, 29(3): 260 − 265. doi: 10.3321/j.issn:0258-0918.2009.03.011

Tan L, Katoh Y, Tavassoli A A F, et al. Recent status and improvement of reduced-activation ferritic-martensitic steels for high-temperature service[J]. Journal of Nuclear Materials, 2016, 479: 515 − 523. doi: 10.1016/j.jnucmat.2016.07.054

Sklenicka V, Kucharova K, Svoboda M, et al. Long-term creep behavior of 9%-12% Cr power plant steels[J]. Master Character, 2003, 51: 35 − 37. doi: 10.1016/j.matchar.2003.09.012

姜志忠, 黄继华, 胡杰, 等. 聚变堆用CLAM钢激光焊接接头显微组织及性能[J]. 焊接学报, 2012, 33(2): 5 − 8.

Jiang Zhizhong, Huang Jihua, Hu Jie, et al. Microstructure and mechanical properties of laser welded joints of CLAM steel used for fusion reactor[J]. Transactions of the China Welding Institution, 2012, 33(2): 5 − 8.

Aubert P, Tavassoli F, Rieth M, et al. Review of candidate welding processes of RAFM steels for ITER test blanket modules and DEMO[J]. Journal of Nuclear Materials, 2011, 417(1−3): 43 − 50. doi: 10.1016/j.jnucmat.2010.12.248

Das C R, Albert S K, Sam S, et al. Mechanical properties of 9Cr–1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process[J]. Fusion Engineering & Design, 2014, 89(11): 2672 − 2678.

许乐, 温建锋, 涂善东. P92钢焊接接头蠕变损伤与裂纹扩展数值模拟[J]. 焊接学报, 2019, 40(8): 80 − 88.

Xu Le, Wen Jianfeng, Tu Shandong. Numerical simulations of creep damage and crack growth in P92 steel welded joints[J]. Transactions of the China Welding Institution, 2019, 40(8): 80 − 88.

Albert S K, Tabuchi M, Hongo H, et al. Effect of welding process and groove angle on type IV cracking behavior of weld joints of a ferritic steel[J]. Science & Technology of Welding & Joining, 2013, 10(2): 149 − 157.

Wang J, Lu S, Dong W, et al. Microstructural evolution and mechanical properties of heat affected zones for 9Cr2WVTa steels with different carbon contents[J]. Materials & Design, 2014, 64(12): 550 − 558.

Noh S, Ando M, Tanigawa H, et al. Friction stir welding of F82H steel for fusion applications[J]. Journal of Nuclear Materials, 2016, 478: 1 − 6. doi: 10.1016/j.jnucmat.2016.05.028

Manugula V L, Rajulapati K V, Reddy G M, et al. A critical assessment of the microstructure and mechanical properties of friction stir welded reduced activation ferritic–martensitic steel[J]. Materials & Design, 2016, 92: 200 − 212.

Zhang C, Cui L, Wang D, et al. The heterogeneous microstructure of heat affect zone and its effect on creep resistance for friction stir joints on 9Cr–1.5 W heat resistant steel[J]. Scripta Materialia, 2019, 158: 6 − 10. doi: 10.1016/j.scriptamat.2018.08.028

雷玉成, 张鑫, 陈玲, 等. 中国低活化马氏体钢TIG焊焊接接头的高温蠕变性能分析[J]. 焊接学报, 2016, 37(3): 5 − 8.

Lei Yucheng, Zhang Xin, Chen Ling, et al. Analysis on creep properties of TIG welding joints of China low activation martensitic steel[J]. Transactions of the China Welding Institution, 2016, 37(3): 5 − 8.

Norton F H. The creep of steel at high temperatures[M]. McGraw-Hill Book Company, Incorporated, 1929.

Betten J. Creep mechanics[M]. Springer Science & Business Media, 2008.

Deng K K, Li J C, Xu F J, et al. Hot deformation behavior and processing maps of fine-grained SiCp/AZ91 composite[J]. Materials & Design, 2015, 67(2): 72 − 81.

Lee J S, Armaki H G, Maruyama K, et al. Causes of breakdown of creep strength in 9Cr-1.8W-0.5Mo-VNb steel[J]. Materials Science and Engineering: A, 2006, 428(1/2): 270-275.

叶有俊, 王一宁, 姜勇, 等. 基于碳化物相分析法的 P92 钢寿命无损评价[J]. 压力容器, 2020, 37(8): 1 − 5, 23.

Ye Youjun, Wang Yining, Jiang Yong, et al. Nondestructive life assessment based on carbide phase analysis of P92 steel[J]. Pressure Vessel Technology, 2020, 37(8): 1 − 5, 23.

Zhang X, Lei Y, Chen L, et al. Study on creep properties for TIG welded joints of CLAM steel[J]. Journal of Fusion Energy, 2016, 35(2): 299 − 304. doi: 10.1007/s10894-015-0024-3

[1]	WEN Xue, WANG Honghui, LI Xiyan, QIAN Jiankang, BI Siyuan, LEI Zhenglong. The difference of CTOD of X80M pipeline steel fully automatic welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(2): 98-104. DOI: 10.12073/j.hjxb.20230313001
[2]	ZHANG Nan1,2, TIAN Zhiling2, ZHANG Xi1, YANG Jianwei1. Fracture toughness of CGHAZ of Q690CFD high-strength steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 26-31，36. DOI: 10.12073/j.hjxb.2018390007
[3]	DENG Caiyan, MENG Qingyu, WANG Dongpo, GONG Baoming. Influence of maximum fatigue precracking force on CTOD value of DH36 flux-cored wire CO₂ protection welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(4): 66-70.
[4]	WU Shipin, WANG Dongpo, DENG Caiyan, WANG Ying. Investigation on Pop-in phenomenon and its causes in CTOD test for weld metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (4): 105-108.
[5]	WANG Zhijian, JIANG Jun, WANG Dongpo, DENG Caiyan. CTOD fracture toughness test for super-thick welded joints of D36 offshore platform steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (8): 103-107.
[6]	TONG Lige, BAI Shiwu, LIU Fangming. Prediction system of CTOD for high strength pipeline steel welded joint based on back propagation artificial neural network[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (8): 96-98.
[7]	WU Bing, ZUO Cong-jin, LI Jin-wei, ZHANG Yan-hua, XIONG Lin-yu. Experimeneal research on high Temperature CTOD of electron beam welded joints of GH4169 alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (11): 109-112.
[8]	WANG Jian-ping, HUO Li-xing, ZHANG Yu-feng, WANG Dong-po. Pop-in effect and its assessment in CTOD test for submerged-arc welded joint of steel EH36[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (5): 80-84.
[9]	DENG Cai yan, ZHANG Yu feng, HUO Li xing, BAI Bing ren, LI Xiao wei, CAO Jun. CTOD fracture toughness of welded joints of X65 pipeline steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2003, (3): 13-16.
[10]	YANG Xin-qi, WANG Dong-po, LI Xiao-wei, LI Lei, CAO-Jun, HUO Li-xing, ZHANG Yu-feng. Large-Sized CTOD Test for Welded Joints of Offshore Petroleum Platform[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2002, (4): 48-52.

Cited By

Cited by

Periodical cited type(2)

1.	刘天元，鲍劲松，汪俊亮，顾俊. 融合时序信息的激光焊接熔透状态识别方法. 中国激光. 2021(06): 228-238 .
2.	王东亮，尹东海，裴雷振，陆凯雷. ZAM薄板激光焊接性能研究与防锈补偿. 热加工工艺. 2020(19): 145-149 .

Other cited types(1)

Get Citation

PDF

XML

Article views (515) PDF downloads (54) Cited by(3)

Turn off MathJax

Article Contents

Abstract

References

High temperature creep behavior of friction stir welding joints for CLAM steel