An Evaluation of Cracks Repairing Techniques in Metals

O P Rathod

Abstract


Cracks are surface that develop in a material. Dissemination energy derived from mechanical, thermal, chemical, and metallurgical effects, or a grouping of these may affect crack beginning and growth. Numerous types of cracks exist in metals and can be characterized as grinding, solidification, cooling, crater, machining tears, plating, centerline, pickling, heat treatment, fatigue, creep, stress corrosion and hydrogen cracks. Cracks can grow and lead to complete fracture of the component posing significant threats to component life and may lead to serious injuries or loss of life. Brittle fracture in metals occurs with little or no visible warning. Discovery of any cracks warrants immediate interventions to arrest the cracks before they propagate to the point of fracture. Numerous crack recognition and repair techniques in metals have been developed, categorized and certified through examination. This paper presents the repair techniques of cracks in metals.

Full Text:

PDF PDF

References


A. Mann, “Forensic Engineering: Cracks in steel structures,” Proceedings of the Institution of Civil Engineers, vol. 164, no. FE1, pp. 15-23, February 2011.

P. Hart, “Weld Metal Hydrogen Cracking in Pipeline Girth Welds,” in 1st International Conference, Wollongong, Silverwater, Australia, 1999.

D. Roylance, “Introduction to Fracture Mechanics,” Massachusetts Institute of Technology, Cambridge, USA, 2001.

R. Dexter, K. Anami, P. Albrecht, B. Brakke, O. Bucak, R. Connor, G. Decorges and J. Fisher, “Manual for Repair and Retrofit of Fatigue Cracks in Steel Bridges,” U.S Department of Transportation Federal Highway Administration (FHWA), New York, 2013.

Hashemite-University, “The Hashemite University NDT Centre: Defectology,” [Online]. Available: https://eis.hu.edu.jo/ACUploads/10526/Defectology.pdf. [Accessed 26 March 2015].

J. W. Murray and A. T. Clare, “Repair of EDM induced surface cracks by pulsed electron beam irradiation,” Journal of Materials Processing Technology, vol. 212, pp. 2642-2651, 2012.

R. Emdad and R. Al-Mahaidi, “Effect of prestressed CFRP patches on crack growth of centre-notched steel plates,” Journal of Composite Structures, vol. 123, pp. 109-122, 2015.

M. R. Ayatollahi, S. M. J. Razavi and H. R. Chamani, “Fatigue life extension by crack repair using stop-hole technique under pure mode-I and pure mode-II loading conditions,” XVIIInternational Colloquium on Mechanical Fatigue of Metals (ICMFM17), vol. 74, pp. 18-21,

S. M. A. Khan, F. Benyahia and B. B. A. A. Bouiadjra, “Analysis and Repair of Crack Growth Emanating from V-Notch under Stepped Variable Fatigue Loading,” XVII International Colloquium on Mechanical Fatigue of Metals (ICMFM17), vol. 74, pp. 151-156, 2014.

Locknstitch, “Precision Metal Stitching (Metal Locking) Service,” Locknstich, [Online]. Available: http://www.locknstitch.com/precision-metal-stitching.html. [Accessed 11 April 2016].

Metal-Crack-Stitching, “What is cold mechanical stitching?,” Metal Crack Stitching, [Online]. Available: http://www.metalcrackstitching.com/. [Accessed 11 April 2016].

Metalock-Engineering, “Metal Stitching,” Metalock Engineering UK, [Online]. Available: https://www.metalock.co.uk/typical-on-site-repairs/metal-stitching.aspx. [Accessed 11 April 2016].

Reynolds-French-and-Company, “Lock-n-Stitch repair services,” Reynolds French and Company, [Online]. Available: http://www.r-f.com/lock_n_stitch_repair.asp. [Accessed 11 April 2016].

B. Graf, A. Gumenyuka and M. Rethmeiera, “Laser metal deposition as repair technology for stainless steel and titanium alloys,” Physics Procedia 39, vol. 39, pp. 376-381, 2012.

B. Rottwinkel, C. Nölke, S. Kaierle and V. Wesling, “Crack repair of single crystal turbine blades using laser cladding technology,” in Procedia CIRP 22 ( 2014 ): 3rd International Conference on Through-life Engineering Services: Session: Recent Progress in Jet-Engine Regeneration, Hanover, Germany, 2014.

D. Seo and J. Lee, “Fatigue crack growth behavior of cracked aluminum plate repaired with composite patch,” Journal of Composite Structures, vol. 57, pp. 323-330, 2002.

R. Srilakshmi, M. Ramji and V. Chinthapenta, “Fatigue crack growth study of CFRP patch repaired Al 2014-T6 panel having an inclined center crack using FEA and DIC,” Journal of Engineering Fracture Mechanics, vol. 134, pp. 182-201, 2015.

V. Sabelkin, V. S. Mall and J. B. Avram, “Fatigue crack growth analysis of stiffened cracked panel repaired with bonded composite patch,” Engineering Fracture Mechanics, vol. 73, pp. 1553-1567, 2006.


Refbacks

  • There are currently no refbacks.