Effect of solution cooling rates on microstructure and mechanical properties of K648 high chromium superalloy additive-manufactured by the extreme high-speed laser metal deposition

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成果类型：

期刊论文

作者：

Wang, Kaiming;Liu, Wei;Hong, Yuxiang;Du, Dong;Chang, Baohua;...

通讯作者：

Chang, BH;Ju, J

作者机构：

[Hu, Yongle; Ji, Xixi; Tong, Yonggang; Wang, Kaiming; Liu, Wei] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Peoples R China.

[Hong, Yuxiang; Wang, Kaiming] China Jiliang Univ, Key Lab Intelligent Mfg Qual Big Data Tracing & An, Hangzhou 310018, Peoples R China.

[Chang, BH; Wang, Kaiming; Chang, Baohua; Du, Dong] Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol Adv Equipment, Beijing 100084, Peoples R China.

[Ju, Jiang] City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China.

通讯机构：

[Chang, BH ] T

[Ju, J ] C

Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol Adv Equipment, Beijing 100084, Peoples R China.

City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China.

语种：

英文

关键词：

EHLMD;K648 superalloy;Solution cooling rates;Microstructure;Mechanical properties

期刊：

Journal of Materials Research and Technology

ISSN：

2238-7854

年：

2023

卷：

页码：

8391-8400

DOI：

10.1016/j.jmrt.2023.05.110

基金类别：

National Natural Science Foundation of China [52205334]; Open Fund of Key Laboratory of Intelligent Manufacturing Quality Big Data Tracing and Analysis of Zhejiang Province [ZNZZSZ-CJLU2022-02]; Tribology Science Fund of State Key Laboratory of Tribology in Advanced Equipment , China [SKLTKF21B08]

机构署名：

本校为第一机构

院系归属：

汽车与机械工程学院

摘要：

High chromium superalloy K648, additive-manufactured by extreme high-speed laser metal deposition (EHLMD) process, was heat treated by solution and then cooled at different cooling rates achieved by different conditions in this study. The investigation focused on the impact of solution cooling rates (water-cooling (WC), air-cooling (AC) and furnace-cooling (FC)) on the microstructure and mechanical properties of EHLMD K648 superalloy. As the solution cooling rates decrease, it was observed that grain sizes, carbide, and a-Cr grew larger. Simultaneously, the carbides at the grain boundary evolv...

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Effect of solution cooling rates on microstructure and mechanical properties of K648 high chromium superalloy additive-manufactured by the extreme high-speed laser metal deposition

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