Thermo Mechanical Analysis of SS304 Circular Grid Plate Hard Faced with Colmonoy

S. Balaguru; Kumar Shashi; Murali Vela; P. Chellapandi

doi:10.4028/www.scientific.net/AMM.229-231.710

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 229-231Thermo Mechanical Analysis of SS304 Circular Grid...

Thermo Mechanical Analysis of SS304 Circular Grid Plate Hard Faced with Colmonoy

Abstract:

In this paper, plasma transfer arc welding using hard faced material Colmonoy which is deposited on a annular groove of a circular grid plate made up of SS 304 was studied. Hard face deposition made by Plasma Transferred Arc Welding (PTAW) on a annular groove of a grid plate at relatively high temperature, generates residual stresses due to differential shrinkage of the molten deposit, process-induced thermal gradients and difference in coefficients of thermal expansion between the colmonoy deposit and base material SS 304. However, the magnitude and distribution of the residual stresses vary depending on the heat input, deposition process, and the geometry of the component. Finite element analysis of residual stress is performed with commercial FEA package of ANSYS 12.0 which includes moving heat source, material deposit, temperature dependent material properties, metal plasticity and elasticity. Coupled thermo-mechanical analysis is done for welding simulation and the element birth and death technique is employed for simulation of filler metal deposition. Finally residual stress is evaluated so that annealing is performed accordingly to relieve residual stresses in order to carry out fracture analyses thereafter.

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Periodical:

Applied Mechanics and Materials (Volumes 229-231)

Pages:

710-717

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.229-231.710

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Online since:

November 2012

Authors:

S. Balaguru, Kumar Shashi, Murali Vela, P. Chellapandi

Keywords:

Colmonoy, Material Property, Plasma Transferred Arc Welding, Residual Stress, SS304

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