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Advances in Materials and Processing Technologies Volume 9, 2023 - Issue 3
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Research Article

Experimental investigations and optimisation of Ni-Cr-B-Si hardfacing characteristics deposited by PTAW process on SS 410 using response surface method

S. P. Kakadea Department of Mechanical Engineering, Sanjivani College of Engineering, Kopargaon, IndiaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-2953-2049
ORCID Icon,
A. G. Thakura Department of Mechanical Engineering, Sanjivani College of Engineering, Kopargaon, India
,
D. D. Deshmukhb Department of Mechanical Engineering, MET’s Institute of Engineering, Nashik, IndiaORCID Iconhttps://orcid.org/0000-0001-8673-4520
ORCID Icon &
S. B. Patilc Department of Quality Control, KOSO India Pvt. Limited, Ambad, Nashik, India
Pages 826-842 | Accepted 29 Jun 2022, Published online: 12 Jul 2022
 
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ABSTRACT

In this paper, an attempt has been made to correlate and optimise the plasma transferred arc welding parameters such as transferred arc current (TC), powder feed rate (PF), speed of oscillation (SO), welding speed (WS) and plasma gas (PG) so as to enhance the surface characteristics. The investigations are carried out by considering width-to-reinforcement ratio (W/R) and surface hardness as key responses. The empirical relationship of responses isdeveloped using response surface method (RSM). From this investigation, it is found that the maximum hardness of 47.59 HRC could be achieved with a moderate 4.5 W/R for the deposit. The optimised processing conditions show the transferred arc current (TC) 126 A, welding speed (WS) 100 mm/min, powder feed rate (PF) 13 g/min, speed of oscillation (SO) 600 mm/min, and plasma gas (PG) 2.9 L/min.

Disclosure statement

No potential conflict of interest was reported by the author(s).

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