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Title: L2 Milestone 5433: Characterization of Dynamic Behavior of AM and Conventionally Processed Stainless Steel (316L and 304L)

Abstract

For additive manufacturing (AM) of metallic materials, the certification and qualification paradigm needs to evolve as there currently exists no broadly accepted “ASTM- or DIN-type” additive manufacturing certified process or AM-material produced specifications. Accordingly, design, manufacture, and thereafter implementation and insertion of AM materials to meet engineering applications requires detailed quantification of the constitutive (strength and damage) properties of these evolving materials, across the spectrum of metallic AM methods, in comparison/contrast to conventionally-manufactured metals and alloys. This report summarizes the 316L SS research results and presents initial results of the follow-on study of 304L SS. For the AM-316L SS investigation, cylindrical samples of 316L SS were produced using a LENS MR-7 laser additive manufacturing system from Optomec (Albuquerque, NM) equipped with a 1kW Yb-fiber laser. The microstructure of the AM-316L SS was characterized in both the “as-built” Additively Manufactured state and following a heat-treatment designed to obtain full recrystallization to facilitate comparison with annealed wrought 316L SS. The dynamic shock-loading-induced damage evolution and failure response of all three 316L SS materials was quantified using flyer-plate impact driven spallation experiments at peak stresses of 4.5 and 6.35 GPa. The results of these studies are reported in detail in the first sectionmore » of the report. Publication of the 316L SS results in an archival journal is planned. Following on from the 316L SS completed work, initial results on a study of AM 304L SS are in progress and presented herein. Preliminary results on the structure/dynamic spallation property behavior of AM-304L SS fabricated using both the directed-energy LENS and an EOS powder-bed AM techniques in comparison to wrought 304L SS is detailed in this Level 2 Milestone report.« less

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
  3. Univ. of California, San Diego, CA (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
Contributing Org.:
Washington State Univ., Pullman, WA (United States); Univ. of California, San Diego, CA (United States)
OSTI Identifier:
1329535
Report Number(s):
LA-UR-16-27337
DOE Contract Number:
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; additive manufacturing; 316L SS; spallation; microstructure; damage evolution

Citation Formats

Gray, George Thompson, Livescu, Veronica, Rigg, P. A., Trujillo, Carl Patrick, Cady, Carl McElhinney, Chen, Shuh-Rong, Carpenter, John S., Lienert, Thomas J., Fensin, Saryu Jindal, Knapp, Cameron M., Beal, Roberta Ann, Morrow, Benjamin, Dippo, Olivia F., Jones, David Robert, Martinez, Daniel Tito, and Valdez, James Anthony. L2 Milestone 5433: Characterization of Dynamic Behavior of AM and Conventionally Processed Stainless Steel (316L and 304L). United States: N. p., 2016. Web. doi:10.2172/1329535.
Gray, George Thompson, Livescu, Veronica, Rigg, P. A., Trujillo, Carl Patrick, Cady, Carl McElhinney, Chen, Shuh-Rong, Carpenter, John S., Lienert, Thomas J., Fensin, Saryu Jindal, Knapp, Cameron M., Beal, Roberta Ann, Morrow, Benjamin, Dippo, Olivia F., Jones, David Robert, Martinez, Daniel Tito, & Valdez, James Anthony. L2 Milestone 5433: Characterization of Dynamic Behavior of AM and Conventionally Processed Stainless Steel (316L and 304L). United States. doi:10.2172/1329535.
Gray, George Thompson, Livescu, Veronica, Rigg, P. A., Trujillo, Carl Patrick, Cady, Carl McElhinney, Chen, Shuh-Rong, Carpenter, John S., Lienert, Thomas J., Fensin, Saryu Jindal, Knapp, Cameron M., Beal, Roberta Ann, Morrow, Benjamin, Dippo, Olivia F., Jones, David Robert, Martinez, Daniel Tito, and Valdez, James Anthony. Mon . "L2 Milestone 5433: Characterization of Dynamic Behavior of AM and Conventionally Processed Stainless Steel (316L and 304L)". United States. doi:10.2172/1329535. https://www.osti.gov/servlets/purl/1329535.
@article{osti_1329535,
title = {L2 Milestone 5433: Characterization of Dynamic Behavior of AM and Conventionally Processed Stainless Steel (316L and 304L)},
author = {Gray, George Thompson and Livescu, Veronica and Rigg, P. A. and Trujillo, Carl Patrick and Cady, Carl McElhinney and Chen, Shuh-Rong and Carpenter, John S. and Lienert, Thomas J. and Fensin, Saryu Jindal and Knapp, Cameron M. and Beal, Roberta Ann and Morrow, Benjamin and Dippo, Olivia F. and Jones, David Robert and Martinez, Daniel Tito and Valdez, James Anthony},
abstractNote = {For additive manufacturing (AM) of metallic materials, the certification and qualification paradigm needs to evolve as there currently exists no broadly accepted “ASTM- or DIN-type” additive manufacturing certified process or AM-material produced specifications. Accordingly, design, manufacture, and thereafter implementation and insertion of AM materials to meet engineering applications requires detailed quantification of the constitutive (strength and damage) properties of these evolving materials, across the spectrum of metallic AM methods, in comparison/contrast to conventionally-manufactured metals and alloys. This report summarizes the 316L SS research results and presents initial results of the follow-on study of 304L SS. For the AM-316L SS investigation, cylindrical samples of 316L SS were produced using a LENS MR-7 laser additive manufacturing system from Optomec (Albuquerque, NM) equipped with a 1kW Yb-fiber laser. The microstructure of the AM-316L SS was characterized in both the “as-built” Additively Manufactured state and following a heat-treatment designed to obtain full recrystallization to facilitate comparison with annealed wrought 316L SS. The dynamic shock-loading-induced damage evolution and failure response of all three 316L SS materials was quantified using flyer-plate impact driven spallation experiments at peak stresses of 4.5 and 6.35 GPa. The results of these studies are reported in detail in the first section of the report. Publication of the 316L SS results in an archival journal is planned. Following on from the 316L SS completed work, initial results on a study of AM 304L SS are in progress and presented herein. Preliminary results on the structure/dynamic spallation property behavior of AM-304L SS fabricated using both the directed-energy LENS and an EOS powder-bed AM techniques in comparison to wrought 304L SS is detailed in this Level 2 Milestone report.},
doi = {10.2172/1329535},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 26 00:00:00 EDT 2016},
month = {Mon Sep 26 00:00:00 EDT 2016}
}

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