LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Chan, Lydia; Shyha, Islam; Dreyer, Dale; Hamilton, John; Hackney, Philip (2016)
Languages: English
Types: Unknown
Subjects: H100, H300, H700
Weld Overlay Cladding (WOC) is a surfacing technique commonly applied on subsea Oil and Gas components to provide additional properties such as wear and corrosion resistance at a more superior level. This process involves a clad metal with certain desirable characteristics – tends to be a superalloy – being fusion-welded onto a lower cost standard metallic substrate such as steel. In some cases, a repair is required to recondition damaged or corroded clad surfaces. This paper presents an investigation on tensile strength variation that occurs in the metallic substrate post-repair. Tensile tests were carried out on specimens extracted from a repaired substrate and a section of unclad substrate. Results were compared and have shown that variations occurred in both pieces – neither were close to the values stated on the material certificate or previous test certificate. Through literature review, suggestions were made for the reasons behind this phenomenon. Recommendations were proposed as to how such non-uniformity can be prevented or rectified through amending material procurement and cladding procedure.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] D. Askeland and P. Fulay, Essentials of Materials Science and Engineering, 2nd ed., Nelson Engineering, 2009.
    • [2] J. Verhoeven, Fundamentals of Physical Metallurgy, John Wiley & Sons Inc., 1975.
    • [3] H. Bhadeshia and R. Honeycombe, Steels: Microstructure and Properties, 3rd ed., Butterworth-Heinemann, 2006.
    • [4] P. Thornton and V. Colangelo, “Variation of mechanical properties in large steel forgings,” Metallurgical Transactions B, vol. 7, no. 3, pp. 425-433, 1976.
    • [5] W. Li, J. Cai, L. Chuzhoy, D. Sherman, K. Erickson and R. Shaikh, “Multiscale Heat Treat Simulation and Performance Modeling of Large Steel Components,” in Heat Treating 2005: Proceedings of the 23rd Conference (ASM International), 2006.
    • [6] T.W.I Ltd, “What is temper embrittlement, and how can it be controlled?,” 2015. [Online]. Available: http://www.twiglobal.com/technical-knowledge/faqs/material-faqs/faqwhat-is-temper-embrittlement-and-how-can-it-becontrolled/. [Accessed 13 April 2015].
    • [7] H. Granjon, Fundametals of Woodhead Publishing Ltd, 1991.
    • [8] T. Hassel, “Effects of Heat Treatment on Microstructure, Strength, and Hardness of F22 Steel,” Norwegian University of Science and Technology, 2013.
    • [9] D. Hodgson, T. Dai and J. Lippold, “Transformation and Tempering Behahavior of the Heat-Affected Zone of 2.25Cr-1Mo Steel,” Welding Journal, vol. 94, no. 8, pp. 250s-256s, 2015.
    • [10] N. Tammasophon, W. Homhrajai and G. Lothongkum, “Effect of Postweld Heat Treatment on Microstructures and Hardness of TIG Weldment between P22 and P91 Steels with Inconel 625 Filler Metal,” Journal of Metals, Materials and Minerals, vol. 21, no. 1, pp. 93-99, 2011.
    • [11] T.W.I Ltd, “Repair welding Cr-Mo steels without PWHT,” 2015. [Online]. Available: http://www.twiglobal.com/news-events/case-studies/repair-welding-crmo-steels-without-pwht-317/. [Accessed 13 April 2015].
    • [12] A. Aloraier, A. Al-Mazrouee, J. Price and T. Shehata, “Weld repair practices without post weld heat treatment for ferritic alloys and their consequences on residual stresses: A review,” International Journal of Pressure Vessels and Piping, vol. 87, pp. 127-133, 2010.
    • [13] L. Friedman, “EWI/TWI controlled deposition repair welding procedure for 1.25Cr-0.5Mo and 2.25Cr-1Mo steels,” Welding Research Council Bulletin, no. 412, pp. 27-34, 1996.
    • Materials Engineering and Performance, vol. 17, no. 6, pp. 888-893, 2008.
    • [15] T.W.I Ltd, “What is the relationship between hardness, microstructure and toughness in steel heat affected zones?,” 2015. [Online]. Available: http://www.twiglobal.com/technical-knowledge/faqs/material-faqs/faqwhat-is-the-relationship-between-hardness-microstructureand-toughness-in-steel-heat-affected-zones/. [Accessed 17 04 2015].
    • [16] G. Krauss, “Martensite in Steel: Strength and Structure,” Mareials Science and Engineering: A, Vols. 273-275, pp. 40-57, 1999.
    • [17] H. Bhadeshia and R. Honeycombe, Steels: Microstructure and Properties, 3rd ed., Elsevier Ltd, 2006.
    • [18] L. Jaffe and E. Gordon, “Temperability of Steels,” Transactions of American Society for Metals, vol. 49, pp. 359-371, 1957.
    • [19] ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article