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Title: Phase transformation dynamics guided alloy development for additive manufacturing

Abstract

Fusion-based additive manufacturing technologies enable the fabrication of geometrically and compositionally complex parts unachievable by conventional manufacturing methods. However, the non-uniform and far-from-equilibrium heating/cooling conditions pose a significant challenge to consistently obtaining desirable phases in the as-printed parts. Here, in this study, we report a martensite stainless steel development guided by phase transformation dynamics revealed by in-situ high-speed, high-energy, high-resolution X-ray diffraction. This developed stainless steel consistently forms desired fully martensitic structure across a wide range of cooling rates (102–107 °C/s), which enables direct printing of parts with fully martensitic structure. The as-printed material exhibits a yield strength of 1157 ± 23 MPa, comparable to its wrought counterpart after precipitation-hardening heat-treatment. The as-printed property is attributed to the fully martensitic structure and the fine precipitates formed during the intrinsic heat treatment in additive manufacturing. The phase transformation dynamics guided alloy development strategy demonstrated here opens the path for developing reliable, high-performance alloys specific for additive manufacturing.

Authors:
 [1];  [1];  [2];  [3];  [1];  [1];  [2];  [2];  [4];  [1]
  1. Univ. of Wisconsin, Madison, WI (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). X-Ray Science Division
  3. Missouri Univ. of Science and Technology, Rolla, MO (United States)
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR)
OSTI Identifier:
1905878
Grant/Contract Number:  
AC02-06CH11357; CMMI-2011354; DMR-1720415; DMR-0420532; DMR-1720139; N00014-0400798; N00014-0610539; N00014-0910781; N00014-1712870; ECCS-2025633
Resource Type:
Accepted Manuscript
Journal Name:
Additive Manufacturing
Additional Journal Information:
Journal Volume: 59; Journal ID: ISSN 2214-8604
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; additive manufacturing; alloy design; high speed diffraction; laser processing; phase transformation; synchrotron X-ray diffraction; 17–4 PH stainless steel

Citation Formats

Guo, Qilin, Qu, Minglei, Chuang, Chihpin Andrew, Xiong, Lianghua, Nabaa, Ali, Young, Zachary A., Ren, Yang, Kenesei, Peter, Zhang, Fan, and Chen, Lianyi. Phase transformation dynamics guided alloy development for additive manufacturing. United States: N. p., 2022. Web. doi:10.1016/j.addma.2022.103068.
Guo, Qilin, Qu, Minglei, Chuang, Chihpin Andrew, Xiong, Lianghua, Nabaa, Ali, Young, Zachary A., Ren, Yang, Kenesei, Peter, Zhang, Fan, & Chen, Lianyi. Phase transformation dynamics guided alloy development for additive manufacturing. United States. https://doi.org/10.1016/j.addma.2022.103068
Guo, Qilin, Qu, Minglei, Chuang, Chihpin Andrew, Xiong, Lianghua, Nabaa, Ali, Young, Zachary A., Ren, Yang, Kenesei, Peter, Zhang, Fan, and Chen, Lianyi. Tue . "Phase transformation dynamics guided alloy development for additive manufacturing". United States. https://doi.org/10.1016/j.addma.2022.103068. https://www.osti.gov/servlets/purl/1905878.
@article{osti_1905878,
title = {Phase transformation dynamics guided alloy development for additive manufacturing},
author = {Guo, Qilin and Qu, Minglei and Chuang, Chihpin Andrew and Xiong, Lianghua and Nabaa, Ali and Young, Zachary A. and Ren, Yang and Kenesei, Peter and Zhang, Fan and Chen, Lianyi},
abstractNote = {Fusion-based additive manufacturing technologies enable the fabrication of geometrically and compositionally complex parts unachievable by conventional manufacturing methods. However, the non-uniform and far-from-equilibrium heating/cooling conditions pose a significant challenge to consistently obtaining desirable phases in the as-printed parts. Here, in this study, we report a martensite stainless steel development guided by phase transformation dynamics revealed by in-situ high-speed, high-energy, high-resolution X-ray diffraction. This developed stainless steel consistently forms desired fully martensitic structure across a wide range of cooling rates (102–107 °C/s), which enables direct printing of parts with fully martensitic structure. The as-printed material exhibits a yield strength of 1157 ± 23 MPa, comparable to its wrought counterpart after precipitation-hardening heat-treatment. The as-printed property is attributed to the fully martensitic structure and the fine precipitates formed during the intrinsic heat treatment in additive manufacturing. The phase transformation dynamics guided alloy development strategy demonstrated here opens the path for developing reliable, high-performance alloys specific for additive manufacturing.},
doi = {10.1016/j.addma.2022.103068},
journal = {Additive Manufacturing},
number = ,
volume = 59,
place = {United States},
year = {Tue Aug 02 00:00:00 EDT 2022},
month = {Tue Aug 02 00:00:00 EDT 2022}
}

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