Microstructural and Mechanical Characterization of 9Cr-1Mo-1W Weld Metal

Year 2018, Volume: 5 Issue: 3 , 203 - 208 , 30.09.2018

Emin Salur Mustafa Acarer Fikret Kabakci Selçuk Keskinkilic Filiz Kumdali Acar Bünyamin Cicek

https://doi.org/10.17350/HJSE19030000095

https://izlik.org/JA94PR26UN

Abstract

This paper presents microstructural and mechanical characterization of E911 welds metal. The types and transformations of the phases and microstructures of all-weld metal have been investigated through scanning electron microscopy, optical microscope, x-ray diffraction analysis. The elemental analysis and mechanical tests of the weld metal was determined by x-ray fluorescence, hardness measurements, and tensile tests respectively. This study will contribute the understanding of microstructural progression, microstructure characterization and mechanical properties of E911 steel after the post-weld heat treatment PWHT .

Keywords

E911 , Microstructure , Nechanical properties , Weld metal , Cr-Mo steel

References

• 1. Guguloth, K., Swaminathan, J., Roy, N., & Ghosh, R. N. Uniaxial creep and stress relaxation behavior of modified 9Cr-1Mo steel. Materials Science and Engineering: A 684,, (2017). 683-696.
• 4. Jeshvaghani, R. A., Emami, M., Shafiee, O., & Shahverdi, H. R. Study on formation and characterization of iron aluminide coatings on 9Cr–1Mo steel substrate. Surface and Coatings Technology, 240, (2014), 365-372.
• 6. Wang, H., Zhang, H., & Li, J. Microstructural evolution of 9Cr–1Mo deposited metal subjected to weld heating. journal of materials processing technology, 209(6), (2009), 2803- 2811.
• 7. Barnes, A., Abson, D., The effect of composition on microstructural development and toughness of weld metals for advanced high temperature 9–13Cr steels. In: Proceedings of the 2nd International Conference on Integrity of High-Temperature Welds, November 10–12, 2003.
• 11. Panait, C. G., Zielińska-Lipiec, A., Koziel, T., CzyrskaFilemonowicz, A., Gourgues-Lorenzon, A. F., & Bendick, W. Evolution of dislocation density, size of subgrains and MXtype precipitates in a P91 steel during creep and during thermal ageing at 600 C for more than 100,000 h. Materials Science and Engineering: A, 527(16), (2010), 4062-4069.
• 13. Panait, C. G., Bendick, W., Fuchsmann, A., GourguesLorenzon, A. F., & Besson, J. Study of the microstructure of the Grade 91 steel after more than 100,000 h of creep exposure at 600 C. International journal of pressure vessels and piping, 87(6), (2010), 326-335.
• 20. ASTM International, Designation: E8/8M-08, Standard practice for tensile testing of metallic materials, Annu. Book ASTM Stand. 64–88, 2009.
• 25. Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger, Tubes. ASTM Standards 2011, A213/A213 M – 11a.