Residual Stress Measurements in Vintage LPG Pressure Vessel Welds, via Neutron Diffraction

Residual Stress Measurements in Vintage LPG Pressure Vessel Welds, via Neutron Diffraction

K. Sozen, A. Paradowska, M. Reid, R. Griffins, J. Daniels

download PDF

Abstract. Systems in power, petrochemical and refinery plants are subject to innumerable degradation mechanisms. Welds are the critical regions in such components. The focus of this project is on Liquid Petroleum Gas (LPG) storage vessels manufactured for Australian refineries in the 1960s. Residual stresses were measured in seam and circumferential welds extracted from the vessels. The aim of this project is to measure the residual stress storage vessel. This data will be used to engineer a procedure to repair the vintage steel plates of the pressure vessels with modern consumables and welding techniques.

Welding, Residual Stress, Neutron Diffraction, Pressure Vessel, Submerged Arc, Liquid Petroleum Gas (LPG)

Published online 12/22/2016, 6 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: K. Sozen, A. Paradowska, M. Reid, R. Griffins, J. Daniels, ‘Residual Stress Measurements in Vintage LPG Pressure Vessel Welds, via Neutron Diffraction’, Materials Research Proceedings, Vol. 2, pp 569-574, 2017


The article was published as article 96 of the book Residual Stresses 2016

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

[1] M. T. Hutchings, Withers.P.J, T. M. Holden, and T. Lorentzen, “Introduction to characterization of residual stress by neutron diffraction,” Mater. Today, 2005, 8: 57.
[2] P. J. Withers and H. K. D. H. Bhadeshia, “Residual stress Part 1 – Measurement techniques,” 2001, Materials Science and Technology.17:355–365.
[3] Alipooramirabad H, Paradowska A, Ghomashchi R, Kotousov A, Reid M. Quantification of residual stresses in multi-pass welds using neutron diffraction. Journal of materials processing technology. 2015;226:40-9.
[4] Balasubramanian V, Guha B. Effect of welding processes on toe cracking behaviour of pressure vessel grade steel. Engineering Failure Analysis. 2004;11:575-87.
[5] V. Pearce and V. M. Linton, “Neutron diffraction measurement of residual stress in high strength, highly restrained, thick section steel welds,” Phys. B Condens. Matter. 2006, 385–386: 590–593.
[6] A.M. Paradowska, J.W.H. Price, T.R. Finlayson, R.B. Rogge, R.L. Donaberger, R. Blevins, R. Ibrahim, Comparison of Neutron Diffraction Residual Stress Measurements of Steel Butt Welds with Current Fitness-For-Purpose Assessments, Transaction of the ASME – Journal of Pressure Vessel Technology, 2010, 132: 051503: 1-7
[7] C. J. Moss, “Investigation of the Structural Integrity of Eight LPG Bullets”, ANSTO Report, 1993.
[8] T. Temperatures and W. R. Stresses, “PVP2007-26544 in Ferritic Steels,”, 2007,949–956.
[9] J.A. James, L. Edwards, Application of robot kinematics methods to the simulation and control of neutron beam line positioning systems. Nuclear Instruments and Methods in Physics Research A., 2007, 571:709-718.
[10] A.M. Paradowska, C Shen, N Larkin, H Li, Z Pan, M Law, Residual stress measurements of welds made with a Tandem Gas Metal Arc Welding (T-GMAW) weld technique, Powder Diffraction, 2014, 29 (S1) 2014 24-27