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Title: Predicting mesoscale microstructural evolution in electron beam welding

Journal Article · · JOM. Journal of the Minerals, Metals & Materials Society
 [1];  [1];  [1];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Using the kinetic Monte Carlo simulator, Stochastic Parallel PARticle Kinetic Simulator, from Sandia National Laboratories, a user routine has been developed to simulate mesoscale predictions of a grain structure near a moving heat source. Here, we demonstrate the use of this user routine to produce voxelized, synthetic, three-dimensional microstructures for electron-beam welding by comparing them with experimentally produced microstructures. When simulation input parameters are matched to experimental process parameters, qualitative and quantitative agreement for both grain size and grain morphology are achieved. The method is capable of simulating both single- and multipass welds. As a result, the simulations provide an opportunity for not only accelerated design but also the integration of simulation and experiments in design such that simulations can receive parameter bounds from experiments and, in turn, provide predictions of a resultant microstructure.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1249090
Report Number(s):
SAND-2016-1771J; PII: 1863
Journal Information:
JOM. Journal of the Minerals, Metals & Materials Society, Vol. 68, Issue 5; ISSN 1047-4838
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (8)

Modeling analysis of the effect of laser transverse speed on grain morphology during directed energy deposition process journal May 2019
Three-Dimensional Additively Manufactured Microstructures and Their Mechanical Properties journal October 2019
The state of the art in the electron beam manufacturing processes journal November 2016
Process-Structure Linkages Using a Data Science Approach: Application to Simulated Additive Manufacturing Data journal March 2017
Simultaneously enhanced strength and ductility for 3D-printed stainless steel 316L by selective laser melting journal April 2018
Microstructure modelling for metallic additive manufacturing: a review journal October 2019
An active learning high-throughput microstructure calibration framework for solving inverse structure-process problems in materials informatics preprint January 2020
A Two-Dimensional Simulation of Grain Structure Growth within Substrate and Fusion Zone during Direct Metal Deposition book July 2018