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  Hydrogen uptake and its influence in selective laser melted austenitic stainless steel: A nanoindentation study

Park, J.-M., Zhao, Y., Voisin, T., Lee, D.-H., Komazaki, S.-i., Ko, Y., Kim, D.-I., Suh, J.-Y., Han, H. N., Wang, Y. M., Ramamurty, U., & Jang, J.-i. (2021). Hydrogen uptake and its influence in selective laser melted austenitic stainless steel: A nanoindentation study. Scripta Materialia, 194:. doi:10.1016/j.scriptamat.2020.113718.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0009-71CA-4 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0009-71CB-3
資料種別: 学術論文

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 作成者:
Park, Jeong-Min1, 著者           
Zhao, Yakai2, 著者           
Voisin, Thomas3, 著者
Lee, Dong-Hyun4, 著者           
Komazaki, Shin-ichi5, 著者
Ko, Yoonseok6, 7, 著者
Kim, Dong-Ik6, 著者
Suh, Jin-Yoo6, 著者
Han, Heung Nam7, 著者
Wang, Y. Morris3, 8, 著者
Ramamurty, Upadrasta9, 著者           
Jang, Jae-il1, 著者
所属:
1Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, South Korea, ou_persistent22              
2School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China, ou_persistent22              
3Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA, ou_persistent22              
4Alloys for Additive Manufacturing, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2117289              
5Department of Mechanical Engineering, Kagoshima University, Kagoshima 890-0065, Japan, ou_persistent22              
6Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea, ou_persistent22              
7Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea, ou_persistent22              
8Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA, ou_persistent22              
9School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, ou_persistent22              

内容説明

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キーワード: Cells; Cytology; Forward scattering; Hardness; Hydrogen; Nanoindentation; Thermal desorption spectroscopy, 316L austenitic stainless steel; Cell structure; Cell walls; Effect of hydrogen; Hydrogen uptake; Nanoindentation experiments; Scattered electrons; Statistical distribution, Austenitic stainless steel
 要旨: The effect of hydrogen (H) charging on the nanoindentation response of a selective laser melted (SLM) 316L austenitic stainless steel was investigated and compared with its conventionally manufactured (CM) counterpart. Results show that the hardness increment in the SLM samples due to H charging is relatively smaller. Thermal desorption spectroscopy analysis suggests that the charged SLM alloy has not only a smaller H content but a lower apparent H diffusivity in comparison to the CM alloy. This was attributed to the ultrafine solidification cell structure in the SLM alloy. Through the low-load nanoindentation experiments and forward-scattered electron imaging analysis, statistical distributions of the hardness of the cell walls and interiors were assessed. The cell walls, consisting of high-density dislocations with segregated elements, were relatively insensitive to H charging than the cell interiors. These results are discussed in terms of the apparent H solubility and diffusivity in the SLM alloy. © 2021

資料詳細

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言語: eng - English
 日付: 2021-03-15
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子（DOI, ISBNなど）: DOI: 10.1016/j.scriptamat.2020.113718
 学位: -

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出版物 1

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出版物名: Scripta Materialia
  省略形 : Scripta Mater.
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Amsterdam : Elsevier B. V.
ページ: - 巻号: 194 通巻号: 113718 開始・終了ページ: - 識別子（ISBN, ISSN, DOIなど）: ISSN: 1359-6462
CoNE: https://pure.mpg.de/cone/journals/resource/954926243506