Printability, microstructures and mechanical properties of a novel Co-based superalloy fabricated via laser powder bed fusion

Guo，Chuan1; Xu，Zhen2; Li，Gan2,3; Wang，Jingchen4; Hu，Xiaogang2; Li，Ying1; Chen，Xiaohan2; Liu，Hui3; Cheng，Le2; Zhong，Shiyu3; Zhu，Qiang2; Lu，Jian1,3,4

2024-08-01

10.1016/j.jmst.2023.10.062

Journal of Materials Science and Technology   影响因子和分区

1005-0302

High levels of Al and Ti in superalloy compositions normally lead to cracking formation during the laser powder bed fusion process, while these elements are key constituents of strengthening phases. In the current study, a novel Co-based superalloy with the basic chemical composition of Co-Al-W-Ta-Ti resolved this contradiction, indicating that the part was formed without cracking and simultaneously contained a large amount of strengthening precipitates in the microstructure fabricated via laser powder bed fusion. The printability, microstructures, and mechanical properties of the sample were analysed before and after heat treatment, providing a potential superalloy that can replace Ni-based superalloys fabricated by additive manufacturing in aerospace and other industries with higher temperature and more efficiency.

Co-based superalloy Laser powder bed fusion Mechanical properties Microstructure Printability

SCI ; EI

英语

其他

20240615508539

Cobalt alloys ; Cracks ; Fabrication ; Nickel alloys ; Superalloys ; Tantalum alloys ; Titanium alloys

Metallurgy and Metallography:531 ; Titanium and Alloys:542.3 ; Tantalum and Alloys:543.4 ; Nickel Alloys:548.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85184056208

Scopus

1.CityU-Shenzhen Futian Research Institute,Shenzhen,518045,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Mechanical Engineering,Shenyang National Laboratory for Materials Science,Greater Bay Joint Division,City University of Hong Kong,Kowloon,Tat Chee Avenue,Hong Kong
4.Centre for Advanced Structural Materials,City University of Hong Kong Shenzhen Research Institute,Greater Bay Joint Division,Shenyang National Laboratory for Materials Science,Shenzhen,518057,China

Guo，Chuan,Xu，Zhen,Li，Gan,et al. Printability, microstructures and mechanical properties of a novel Co-based superalloy fabricated via laser powder bed fusion[J]. Journal of Materials Science and Technology,2024,189:96-109.

Guo，Chuan.,Xu，Zhen.,Li，Gan.,Wang，Jingchen.,Hu，Xiaogang.,...&Lu，Jian.(2024).Printability, microstructures and mechanical properties of a novel Co-based superalloy fabricated via laser powder bed fusion.Journal of Materials Science and Technology,189,96-109.

Guo，Chuan,et al."Printability, microstructures and mechanical properties of a novel Co-based superalloy fabricated via laser powder bed fusion".Journal of Materials Science and Technology 189(2024):96-109.