Reduction of Micro-Crack in Ni-Based Superalloy IN-713LC Produced by Laser Powder Bed Fusion

M. Mohsin Raza, Hung Yu Wang, Yu Lung Lo, Hong Chuong Tran

研究成果: Conference contribution

摘要

Inconel 713LC is a Ni-based superalloy, which is known as a non-weldable alloy, subjected to severe solidification cracking during the LPBF process. In this study, a systematic optimization method was constructed to find the optimal parameter region of IN713LC in LPBF additive manufacturing. The optimization method combines the perspectives of reducing the micro-cracks and the pores in melt-pool; therefore, the optimal region of the processing map can provide workpieces with less crack and high density. The specimens were fabricated with various fabrication parameters, leading to different melt-pool sizes, shapes, and different crack density. The corresponding results shows a trend that larger the mushy zone would result in the higher susceptibility of micro-cracking. As a result, the crack density of the specimens in the optimal parameter region has the lowest crack and the high relative densiy. It is found that in the result of the tensile test, LPBF processed IN713LC specimen shows excellent mechanical properties than that in casting.

原文English
主出版物標題Thermomechanics and Infrared Imaging, Inverse Problem Methodologies, Mechanics of Additive and Advanced Manufactured Materials, and Advancements in Optical Methods and Digital Image Correlation, Proceedings of the 2021 Annual Conference on Experimental and Applied Mechanics
編輯Tadeusz Dudycz, Grażyna Osbert-Pociecha, Bogumiła Brycz
發行者Springer
頁面73-76
頁數4
ISBN(列印)9783030867447
DOIs
出版狀態Published - 2022
事件SEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2021 - Virtual, Online
持續時間: 2021 6月 142021 6月 17

出版系列

名字Conference Proceedings of the Society for Experimental Mechanics Series
ISSN(列印)2191-5644
ISSN(電子)2191-5652

Conference

ConferenceSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2021
城市Virtual, Online
期間21-06-1421-06-17

All Science Journal Classification (ASJC) codes

  • 工程 (全部)
  • 計算力學
  • 機械工業

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