The role of in-situ nano-TiB2 particles in improving the printability of noncastable 2024Al alloy. Issue 10 (3rd October 2022)

• Record Type: Journal Article
• Authors: Sun, Tengteng; Wang, Hongze; Gao, Zhenyang; Wu, Yi; Wang, Mingliang; Jin, Xinyuan; Alex Leung, Chu Lun; Lee, P.D.; Fu, Yanan; Wang, Haowei
• Is Part Of: Materials research letters. Volume 10:Issue 10(2022)
• Page Start: 656
• Page End: 665
• Publication Date: 2022-10-03
• Subjects: Laser powder bed fusion -- composites -- grain refinement efficiency -- heterogeneous nucleating; Materials science -- Research -- Periodicals; Biomedical materials -- Research -- Periodicals; Composite materials -- Research -- Periodicals; Biomedical materials -- Research; Composite materials -- Research; Materials science -- Research; Periodicals; 620.1105
• DOI: 10.1080/21663831.2022.2080514
• Languages: English
• ISSNs: 2166-3831

Abstract

Abstract : In-situ pre-decorated different content of TiB2 particle reinforced 2024 Al matrix composites ( x TiB2 /2024Al composite, x = 0, 1, 2, 4, 6, 8 wt.%) were printed by laser powder bed fusion (LPBF). A quantitative equation was established to quantify heterogeneous nucleating potency by TiB2 nanoparticles on the grain size of the LPBFed samples. Optimized mechanical properties were obtained in the as-printed 4TiB2 /2024Al alloy which proved the feasibility of replacing the wrought part with the LPBFed one. This manuscript provides a method to determine the optimized content of TiB2 nanoparticles to change the noncastable material to the printable one. GRAPHICAL ABSTRACT: UF0001 IMPACT STATEMENT: This manuscript provides a method to determine the optimized TiB2 content to change the noncastable material to the printable one, and can potentially guide the introduction of many other nanoparticles.