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Title: Toward Process-Based Quality through a Fundamental Understanding of Weld Microstructural Evolution

Here, in this overview paper, the possibility of qualifying welded components by integrating software and hardware tools that are capable of describing physical processes that occur during welding is explored. The existing and emerging tools to define geometrical boundary conditions, process parameters, heat and mass transfer, solidification, solid-state transformation, plastic deformation, distortion, residual stress, and performance of welded components are reviewed. Existing challenges relevant to the fundamental understanding of complex alloying, processing environment, and transients in energy deposition are discussed with reference to microstructure evolution. Finally, approaches to address these challenges were articulated with published case studies relevant to welding and additive manufacturing.
Authors:
 [1]
  1. Univ. of Tennessee, Knoxville, TN (United States). Department of Mechanical, Aerospace and Biomedical Engineering, Tickle College of Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility and Energy and Transportations Sciences Division
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Welding Journal
Additional Journal Information:
Journal Volume: 97; Journal Issue: 1-s; Journal ID: ISSN 0043-2296
Publisher:
American Welding Society
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE; Process-Based Quality; Microstructural Evolution; Energy Deposition; Additive Manufacturing; Residual Stress
OSTI Identifier:
1471848

Babu, Sudarsanam Suresh. Toward Process-Based Quality through a Fundamental Understanding of Weld Microstructural Evolution. United States: N. p., Web. doi:10.29391/2018.97.001.
Babu, Sudarsanam Suresh. Toward Process-Based Quality through a Fundamental Understanding of Weld Microstructural Evolution. United States. doi:10.29391/2018.97.001.
Babu, Sudarsanam Suresh. 2018. "Toward Process-Based Quality through a Fundamental Understanding of Weld Microstructural Evolution". United States. doi:10.29391/2018.97.001. https://www.osti.gov/servlets/purl/1471848.
@article{osti_1471848,
title = {Toward Process-Based Quality through a Fundamental Understanding of Weld Microstructural Evolution},
author = {Babu, Sudarsanam Suresh},
abstractNote = {Here, in this overview paper, the possibility of qualifying welded components by integrating software and hardware tools that are capable of describing physical processes that occur during welding is explored. The existing and emerging tools to define geometrical boundary conditions, process parameters, heat and mass transfer, solidification, solid-state transformation, plastic deformation, distortion, residual stress, and performance of welded components are reviewed. Existing challenges relevant to the fundamental understanding of complex alloying, processing environment, and transients in energy deposition are discussed with reference to microstructure evolution. Finally, approaches to address these challenges were articulated with published case studies relevant to welding and additive manufacturing.},
doi = {10.29391/2018.97.001},
journal = {Welding Journal},
number = 1-s,
volume = 97,
place = {United States},
year = {2018},
month = {1}
}