Properties for the electron beam welds and friction stir welds of 9Cr-1.5W-0.15Ta heat resistant steel

ZHANG Chao; CUI Lei; ZHANG Hengquan; WANG Jing; ZHANG Ran; HOU Ailin

doi:10.12073/j.hjxb.20200401003

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2020 > 41(11): 13-17. > DOI: 10.12073/j.hjxb.20200401003

ZHANG Chao, CUI Lei, ZHANG Hengquan, WANG Jing, ZHANG Ran, HOU Ailin. Properties for the electron beam welds and friction stir welds of 9Cr-1.5W-0.15Ta heat resistant steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(11): 13-17. DOI: 10.12073/j.hjxb.20200401003

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Properties for the electron beam welds and friction stir welds of 9Cr-1.5W-0.15Ta heat resistant steel

1.
Fourth Institute of Nuclear Power Institute of China, Chengdu 610213, China
2.
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300350, China

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Received Date: March 31, 2020
Available Online: October 22, 2020

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Abstract

Abstract

9Cr-1.5W-0.15Ta heat-resistant steel was subjected to electron beam welding and friction stir welding process tests, respectively. The effects of different welding methods on the microstructural characteristics and mechanical properties of the welds were studied. The results showed that the electron beam weld was composed of coarse dendritic lath martensite structure, and the precipitates at the austenite grain boundaries and interior were completely dissolved. However, the grain refinement and homogenous microstructure are observed in the friction stir weld. The M23C6 carbides at the grain boundaries were dissolved, while there was no significant change for these spherical MX phase in the grains interior. Due to the formation of a large number of lath martensite structure, the hardness of electron beam weld and friction stir weld is significantly higher than that of the base metal. Difference of welding process methods has a greater impact on the impact absorption energy of their welds: the impact toughness of the electron beam weld significantly reduces, and the impact absorption energy is only 12.2% of the base metal. The impact toughness of friction stir weld is better, and the impact absorption energy is about 90% of the base metal.
- 9Cr-1.5W-0.15Ta heat resistant steel,
- electron beam welding,
- friction stir welding,
- microstructure,
- mechanical properties

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Matsukawa Y, Zinkle S. J One-dimensional fast migration of vacancy clusters in metals[J]. Science, 2007, 318: 959 − 962. doi: 10.1126/science.1148336

Wu Y, Zheng S, Zhu X, et al. Conceptual design of the fusion-driven subcritical system FDS-I[J]. Fusion Engineering and Design, 2006, 81: 1305 − 1311. doi: 10.1016/j.fusengdes.2005.10.015

Wu Y. Design status and development strategy of China liquid lithium–lead blankets and related material technology[J]. Journal of Nuclear Materials, 2007, 367–370: 1410 − 1415.

Huang Q, Wu Q, Li C, et al. Progress in development of fabrication of small TBMs for EAST and ITER[J]. Fusion Engineering and Design, 2010, 85: 2192 − 2195. doi: 10.1016/j.fusengdes.2010.08.028

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

Zhang Kun, Luan Guohong, Fu Ruidong. Effect of natural aging on microstructure and mechanical properties of friction stir welded 7050-T7451 joints[J]. China Welding, 2016, 25(3): 16 − 22.

Poitevin Y, Aubert P, Diegele E, et al. Development of welding technologies for the manufacturing of European Tritium Breeder blanket modules[J]. Journal of Nuclear Materials, 2011, 417: 36 − 42. doi: 10.1016/j.jnucmat.2010.12.259

李胜利, 杨新岐, 唐文珅, 等. 新型9Cr-1Mo钢搅拌摩擦焊接头组织及性能[J]. 焊接学报, 2019, 40(4): 28 − 35.

Li Shengli, Yang Xinqi, Tang Wenshen, et al. Microstructure and mechanical properties of friction stir welded novel 9Cr-1Mo steel[J]. Transactions of the China Welding Institution, 2019, 40(4): 28 − 35.

Liu Jialun, Zhu Hao, Jiang Yue, et al. Evolution of residual stress field in 6No1 aluminum alloy friction stir welding joint[J]. China Welding, 2018, 27(4): 18 − 26.

王廷, 张峰, 李宁, 等. Ti60钛合金/GH3128高温合金电子束焊接头脆裂原因分析[J]. 焊接学报, 2017, 38(12): 19 − 22.

Wang Ting, Zhang Feng, Li Ning, et al. Analysis of embrittlement of Ti60 and GH3128 electron beam welded joint[J]. Transactions of the China Welding Institution, 2017, 38(12): 19 − 22.

Chen Guoqing, Zhang Banggang, Yang Yong, et al. Electron beam welding of sicp/2024 and 2219 aluminum alloy[J]. China Welding, 2019, 28(4): 51 − 55.

Chatterjee A, Chakrabarti D, Moitra A, et al. Effect of deformation temperature on the ductile–brittle transition behavior of a modified 9Cr–1Mo steel[J]. Materials Science and Engineering A, 2015, 630: 58 − 70. doi: 10.1016/j.msea.2015.01.076

Sawada K, Hara T, Tabuchi M, et al. Microstructure characterization of heat affected zone after welding in Mod. 9Cr–1Mo steel[J]. Materials Characterization, 2015, 101: 106 − 113. doi: 10.1016/j.matchar.2015.01.013

Pandey C, Giri A, Mahapatra M. Evolution of phases in P91 steel in various heat treatment conditions and their effect on microstructure stability and mechanical properties[J]. Materials Science and Engineering A, 2016, 664: 58 − 74. doi: 10.1016/j.msea.2016.03.132

Zurob H, Hutchinson C, Brechet Y, et al. Modeling recrystallization of microalloyed austenite: effect of coupling recovery, precipitation and recrystallization[J]. Acta Materialia, 2002, 50: 3077 − 3094. doi: 10.1016/S1359-6454(02)00097-6

Paul V, Saroja S, Albert S, et al. Microstructural characterization of weld joints of 9Cr reduced activation ferritic martensitic steel fabricated by different joining methods[J]. Materials Characterization, 2014, 96: 213 − 224. doi: 10.1016/j.matchar.2014.08.013

Das C, Albert S, Sam S, et al. Mechanical properties of 9Cr–1W reduced activation ferriticmartensitic steel weldment prepared by electron beam weldingprocess[J]. Fusion Engineering and Design, 2014, 89: 2672 − 2678. doi: 10.1016/j.fusengdes.2014.07.001

Zhou T, Yu H, Wang S. Effect of microstructural types on toughness and microstructural optimization of ultra-heavy steel plate: EBSD analysis and microscopic fracture mechanism[J]. Materials Science and Engineering A, 2016, 658: 150 − 158. doi: 10.1016/j.msea.2016.02.001

Furuhara T. Key factors in grain refinement of martensite and bainite[J]. Materials Science Forum, 2010, 638: 3044 − 3049.

Morris JW Jr, Kinney C, Pytlewski K, et al. Microstructure and cleavage in lath martensitic steels[J]. Science and Technology of Advanced Materials, 2013, 14(1): 014208. doi: 10.1088/1468-6996/14/1/014208

Arlazarov A, Ollat M, Masse J P, et al. Influence of partitioning on mechanical behavior of Q & P steels[J]. Materials Science and Engineering A, 2016, 661: 79 − 86. doi: 10.1016/j.msea.2016.02.071

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