Microstructure and properties of K648 superalloy additively manufactured by extreme high-speed laser metal deposition

Kai-ming WANG; Wei LIU; Dong DU; Bao-hua CHANG; Guan LIU; Yong-le HU; Yong-gang TONG; Ming-jun ZHANG; Jian ZHANG; Jiang JU

doi:10.1016/S1003-6326(24)66534-9

Microstructure and properties of K648 superalloy additively manufactured by extreme high-speed laser metal deposition

Kai-ming WANG
, Wei LIU
, Dong DU
, Bao-hua CHANG
, Guan LIU
, Yong-le HU
, Yong-gang TONG
, Ming-jun ZHANG
, Jian ZHANG
, Jiang JU

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

16 Citations (Scopus)

31 Downloads (CityUHK Scholars)

Abstract

In order to improve the manufacturing efficiency of high-chromium superalloys, an innovative extreme high- speed laser metal deposition (EHLMD) process was used. The growth behavior of precipitated phases, high-temperature mechanical properties, wear resistance, and corrosion resistance of EHLMD K648 superalloy were investigated and compared with conventional laser metal deposition (CLMD) using transmission electron microscope, tensile tester, wear tester and electrochemical workstation, respectively. The results reveal that the precipitated phase size in EHLMD K648 superalloy is significantly smaller than that in CLMD K648 superalloy. Moreover, EHLMD K648 superalloy demonstrates higher tensile strength at 700 °C, superior wear resistance, and excellent corrosion resistance compared to CLMD K648 superalloy. Consequently, the K648 superalloy manufactured through EHLMD technique exhibits favorable comprehensive properties. © 2024 The Nonferrous Metals Society of China.

Translated title of the contribution	超高速激光金属沉积增材制造 K648 高温合金的显微组织与性能
Original language	English
Pages (from-to)	2192-2203
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	34
Issue number	7
Online published	26 Jul 2024
DOIs	https://doi.org/10.1016/S1003-6326(24)66534-9
Publication status	Published - Jul 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

additive manufacturing
extreme high-speed laser metal deposition (EHLMD)
K648 superalloy
microstructure evolution
properties

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This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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title = "Microstructure and properties of K648 superalloy additively manufactured by extreme high-speed laser metal deposition",

abstract = "In order to improve the manufacturing efficiency of high-chromium superalloys, an innovative extreme high- speed laser metal deposition (EHLMD) process was used. The growth behavior of precipitated phases, high-temperature mechanical properties, wear resistance, and corrosion resistance of EHLMD K648 superalloy were investigated and compared with conventional laser metal deposition (CLMD) using transmission electron microscope, tensile tester, wear tester and electrochemical workstation, respectively. The results reveal that the precipitated phase size in EHLMD K648 superalloy is significantly smaller than that in CLMD K648 superalloy. Moreover, EHLMD K648 superalloy demonstrates higher tensile strength at 700 °C, superior wear resistance, and excellent corrosion resistance compared to CLMD K648 superalloy. Consequently, the K648 superalloy manufactured through EHLMD technique exhibits favorable comprehensive properties. {\textcopyright} 2024 The Nonferrous Metals Society of China.",

keywords = "additive manufacturing, extreme high-speed laser metal deposition (EHLMD), K648 superalloy, microstructure evolution, properties, 增材制造, 超高速激光金属沉积, K648 高温合金, 显微组织演变, 性能, 增材製造, 超高速鐳射金屬沉積, 顯微組織演變",

author = "Kai-ming WANG and Wei LIU and Dong DU and Bao-hua CHANG and Guan LIU and Yong-le HU and Yong-gang TONG and Ming-jun ZHANG and Jian ZHANG and Jiang JU",

year = "2024",

month = jul,

doi = "10.1016/S1003-6326(24)66534-9",

language = "English",

volume = "34",

pages = "2192--2203",

journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

issn = "1003-6326",

publisher = "Nonferrous Metals Society of China",

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}

Microstructure and properties of K648 superalloy additively manufactured by extreme high-speed laser metal deposition. / WANG, Kai-ming; LIU, Wei; DU, Dong et al.
In: Transactions of Nonferrous Metals Society of China (English Edition), Vol. 34, No. 7, 07.2024, p. 2192-2203.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Microstructure and properties of K648 superalloy additively manufactured by extreme high-speed laser metal deposition

AU - WANG, Kai-ming

AU - LIU, Wei

AU - DU, Dong

AU - CHANG, Bao-hua

AU - LIU, Guan

AU - HU, Yong-le

AU - TONG, Yong-gang

AU - ZHANG, Ming-jun

AU - ZHANG, Jian

AU - JU, Jiang

PY - 2024/7

Y1 - 2024/7

N2 - In order to improve the manufacturing efficiency of high-chromium superalloys, an innovative extreme high- speed laser metal deposition (EHLMD) process was used. The growth behavior of precipitated phases, high-temperature mechanical properties, wear resistance, and corrosion resistance of EHLMD K648 superalloy were investigated and compared with conventional laser metal deposition (CLMD) using transmission electron microscope, tensile tester, wear tester and electrochemical workstation, respectively. The results reveal that the precipitated phase size in EHLMD K648 superalloy is significantly smaller than that in CLMD K648 superalloy. Moreover, EHLMD K648 superalloy demonstrates higher tensile strength at 700 °C, superior wear resistance, and excellent corrosion resistance compared to CLMD K648 superalloy. Consequently, the K648 superalloy manufactured through EHLMD technique exhibits favorable comprehensive properties. © 2024 The Nonferrous Metals Society of China.

AB - In order to improve the manufacturing efficiency of high-chromium superalloys, an innovative extreme high- speed laser metal deposition (EHLMD) process was used. The growth behavior of precipitated phases, high-temperature mechanical properties, wear resistance, and corrosion resistance of EHLMD K648 superalloy were investigated and compared with conventional laser metal deposition (CLMD) using transmission electron microscope, tensile tester, wear tester and electrochemical workstation, respectively. The results reveal that the precipitated phase size in EHLMD K648 superalloy is significantly smaller than that in CLMD K648 superalloy. Moreover, EHLMD K648 superalloy demonstrates higher tensile strength at 700 °C, superior wear resistance, and excellent corrosion resistance compared to CLMD K648 superalloy. Consequently, the K648 superalloy manufactured through EHLMD technique exhibits favorable comprehensive properties. © 2024 The Nonferrous Metals Society of China.

KW - additive manufacturing

KW - extreme high-speed laser metal deposition (EHLMD)

KW - K648 superalloy

KW - microstructure evolution

KW - properties

KW - 增材制造

KW - 超高速激光金属沉积

KW - K648 高温合金

KW - 显微组织演变

KW - 性能

KW - 增材製造

KW - 超高速鐳射金屬沉積

KW - 顯微組織演變

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JF - Transactions of Nonferrous Metals Society of China (English Edition)

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Microstructure and properties of K648 superalloy additively manufactured by extreme high-speed laser metal deposition

Abstract

UN SDGs

Research Keywords

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