Volume 1, Issue 1, December 2012, Page: 1-7
A Review on Critical Aspects of 316ln Austenitic Stainless Steel Weldability.
Harish Kumar D, Research Scholar, KITS Kakatiya University, Warangal, (A.P), India
A. Somireddy, Principal, VITS,Karimnagar, (A.P), India
K. Gururaj Gururaj, Head, Mechanical Engineering, KITS, Warangal, (A.P), India
Received: Dec. 9, 2012;       Published: Dec. 30, 2012
DOI: 10.11648/j.ijmsa.20120101.11      View  3322      Downloads  353
Abstract
Austenitic stainless steels are widely used for different applications in chemical, petrochemical, fertilizer, food processing and nuclear industries. These steels posses good weldability but suffer from the problems like sensitization leading to inter­-granular corrosion, hot cracking or micro fissuring and stress corrosion cracking. Nitrogen alloyed austenitic stainless steels designated as 316LN contain low carbon due to which the risk of sensitization can be reduced. These steels are alloyed with nitrogen to compensate for the loss of strength due to decreased carbon content. Welding process like Tungsten Arc welding (TIG), Activated Tungsten Arc welding (A-TIG) and Multi Pass Tungsten Arc welding (MP-TIG) have been used for the fabrication of industrial components. This paper addresses the laser welding aspects, which may be of considerable interest because it offers several advantages over other welding processes.
Keywords
Austenitic Stainless Steel, Sensitization, Nitrogen, Laser Welding, Hot Cracking
To cite this article
Harish Kumar D, A. Somireddy, K. Gururaj Gururaj, A Review on Critical Aspects of 316ln Austenitic Stainless Steel Weldability., International Journal of Materials Science and Applications. Vol. 1, No. 1, 2012, pp. 1-7. doi: 10.11648/j.ijmsa.20120101.11
Reference
[1]
Sindo Kou, 2003. welding metallurgy, 2nd edition, John wiley & Sons Inc.
[2]
M.Vasudevan, A.K.Bhaduri and Baldev Raj, 2008. Development and evaluation of activated flux for TIG Welding of Type 316LN Stainless Steel IIW-IC- Chennai 211-218
[3]
M.Vasudevan, 2007. computational and Experimental studies on Arc Welded Austenitic Stainless Steels, PhD Thesis, Indian Institute of Technology, Chennai
[4]
Z.Sun, 1992. A study of solidification crack susceptibility using the solidification hot- tension test, materials science and Engineering, A1 54, PP-85-92
[5]
B.Raj, V.Shankar, A.K.Bhaduri,2006. Welding Technology for Engineers, Alpha Science International Ltd.-Oxford, U.K
[6]
V.Shankar, T.P.S.Gill, S.L.Mannan, S.Sunderesan, 2003. Effect of Nitrogen addition on micro structure and fusion zone cracking in Type 316L Stainless Steel Weldmetals, Materials Science and Engineering, A343,PP.170-181
[7]
L.Li, R.W.Messler, Jr., 1999. The effect of phosphorous and sulfur on susceptibility to weld hot cracking in Austenitic Stainless Steels, Welding Journal 78(12), PP. 387s-396s.
[8]
John C. Lippold and Damian J.Kotecki, 2005, welding metallurgy and weldability of stainless steels, John Wiedly &Sons Inc
[9]
V.Shankar, T.P.S.Gill, S.LMannan, S.Sundaresan, 2003. Solidification Cracking in Austenitic Stainless Steel Welds, Sadhana Vol.28, parts 3&4, June & August PP.359-382.
[10]
J.A. Brookes, A.W. Thomson, j.C. Williams, 1984. A fundamental study of the beneficial effects of delta ferrite I reducing weld cracking, welding journal 63(3), PP. 71s – 83s
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