Research Article
Bond strength and metallurgical analysis of stainless steel-aluminum bimetallic castings with Ni interlayer using thermocol mould
@INPROCEEDINGS{10.4108/eai.7-12-2021.2314611, author={Raja V and Kavitha M}, title={Bond strength and metallurgical analysis of stainless steel-aluminum bimetallic castings with Ni interlayer using thermocol mould}, proceedings={Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, India}, publisher={EAI}, proceedings_a={ICCAP}, year={2021}, month={12}, keywords={thermocol mould interlayers reaction layer bond strength}, doi={10.4108/eai.7-12-2021.2314611} }- Raja V
Kavitha M
Year: 2021
Bond strength and metallurgical analysis of stainless steel-aluminum bimetallic castings with Ni interlayer using thermocol mould
ICCAP
EAI
DOI: 10.4108/eai.7-12-2021.2314611
Abstract
Ni interlayered Stainless Steel (SS) – Aluminium (Al) Bimetallic Castings (BmC) were successfully produced via pouring the molten aluminium over thermocol moulds with SS pipe insert. The effect of interlayers on integrity and bond strength of the produced BmC were studied and reported. The optical micrographs and liquid penetrant testing revealed very small micro pores in BmC with Ni. Scanning Electron Microscopy (SEM) images confirmed the above observations and the elemental/point analysis using Energy Dispersive Spectroscopy (EDS) attachment at the interface proved the diffusion of elements from interlayer into the casting. It was observed that Ni showed less reaction layer at the interface. The bond strength of uncoated and Ni interlayered BmC were determined as 10.57 and 20.3 MPa respectively.