A correlation of welding solidification parameters to weld macrostructure

A correlation of welding solidification parameters to weld macrostructure

Approved for public release; distribution is unlimited === A 3-D finite difference model simulating single pass autogenous welds was used to predict the temperature fields in HY-80 steel arc weldments at various powers and torch velocities. From the predicted temperature field, two important solidi...

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Bibliographic Details
Main Author: Novak, Francis G.
Other Authors: Fox, Alan G.
Language:en_US
Published: Monterey, California. Naval Postgraduate School 2012
Online Access:http://hdl.handle.net/10945/23596
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spelling ndltd-nps.edu-oai-calhoun.nps.edu-10945-235962015-08-06T16:03:10Z A correlation of welding solidification parameters to weld macrostructure Novak, Francis G. Fox, Alan G. Joshi, Yogendra Naval Postgraduate School (U.S.) Department of Mechanical Engineering Approved for public release; distribution is unlimited A 3-D finite difference model simulating single pass autogenous welds was used to predict the temperature fields in HY-80 steel arc weldments at various powers and torch velocities. From the predicted temperature field, two important solidification parameters were calculated at the solid-liquid interface: temperature gradients and crystal growth velocities. These were correlated with the macrostructures observed in actual weldments. For purposes of model validation, the predicted and actual fusion zone sizes were in agreement, as were the predicted time temperature curves compared to those measured with thermocouples embedded in the plate. 2012-11-29T16:13:55Z 2012-11-29T16:13:55Z 1992-06 Thesis http://hdl.handle.net/10945/23596 en_US This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, it may not be copyrighted. Monterey, California. Naval Postgraduate School
collection NDLTD
language en_US
sources NDLTD
description Approved for public release; distribution is unlimited === A 3-D finite difference model simulating single pass autogenous welds was used to predict the temperature fields in HY-80 steel arc weldments at various powers and torch velocities. From the predicted temperature field, two important solidification parameters were calculated at the solid-liquid interface: temperature gradients and crystal growth velocities. These were correlated with the macrostructures observed in actual weldments. For purposes of model validation, the predicted and actual fusion zone sizes were in agreement, as were the predicted time temperature curves compared to those measured with thermocouples embedded in the plate.
author2 Fox, Alan G.
author_facet Fox, Alan G.
Novak, Francis G.
author Novak, Francis G.
spellingShingle Novak, Francis G.
A correlation of welding solidification parameters to weld macrostructure
author_sort Novak, Francis G.
title A correlation of welding solidification parameters to weld macrostructure
title_short A correlation of welding solidification parameters to weld macrostructure
title_full A correlation of welding solidification parameters to weld macrostructure
title_fullStr A correlation of welding solidification parameters to weld macrostructure
title_full_unstemmed A correlation of welding solidification parameters to weld macrostructure
title_sort correlation of welding solidification parameters to weld macrostructure
publisher Monterey, California. Naval Postgraduate School
publishDate 2012
url http://hdl.handle.net/10945/23596
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