Fabrication of Al-Zr -Mg-Ni matrix composite with TiC reinforcement by multi-pass recursive friction stir processing and its characterization. (2022)

• Record Type: Journal Article
• Authors: Karpagam, J.; Patil, Chandrashekhar K.; Pradeep Kumar, K.V.; Dutt Sharma, Ankur; Goyal, RaviKumar; Lal Rinawa, Moti; Sudhakar, M.
• Is Part Of: Materials today. Volume 59:Part 2(2022)
• Page Start: 1485
• Page End: 1490
• Publication Date: 2022
• Subjects: Magnesium -- Aluminum -- Mechanical properties -- Titanium carbide -- Thermal analysis -- Recursive -- FSP; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.01.239
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: A titanium carbide (TiC)-reinforced Al-Zr-Mg-Ni matrix was utilized for conjunction with multi-pass friction stir processing to create the composite. Reverse engineering and geometric reconstruction techniques were employed to produce a spherical channel at a prearranged depth from the area using wire-EDM and filled with reinforcement elements to prevent the spread of reinforcement particles during fabrication. Multiple recursive passes during friction stir processing were studied to determine the effects on particle distribution and crystallographic texture, as well as surface roughness and mechanical properties. The results showed that increasing the number of passes significantly improved particle distribution and reduced defects such as particle agglomeration and voids. After six passes, the grain size was condensed to 2.40 nm while the dislocation density increased due to the uniform distribution of TiC particles. Grain refinement led to a significant increase in the texture index, which resulted in a surface roughness of 153.593 nm. After six passes, the composite's hardness and tensile strength had increased due to the even distribution of TiC particles and various strengthening mechanisms.