Abstract

In the present experimental study, NiCrBSi alloy was deposited on martensitic stainless steel (AISI 410 grade) using laser cladding technique. High power diode laser (HPDL) was used to obtain good fusion, optimum dilution & crack free single track laser clad by varying laser input power (3200 W, 3600 W & 4000 W) while keeping other processing parameters constant. Powders of NiCrBSi alloy with different wt. % of Ni, Cr, B and Si (50HRC & 60HRC) were used in the current study for the deposition. Pre-heating of the substrate was carried out at around 300°C using oxyacetylene flame before deposition in order to reduce the cracks and porosity. Effect of power on microhardness of laser clad was not prominent in the range of power 3200 to 4000 W). In the case of alloy 1 maximum microhardness 692.2 HV0.3 was observed for power 3600 W, while for alloy 2 with power 3600 W maximum microhardness of as-deposited was 755.1 HV0.3.

Details

Title
Effect of laser power on microhardness of NiCrBSi laser clads deposited on AISI410 stainless steel
Author
Durge, Gaurav 1 ; Chandak, Aayush 2 ; Jaiswal, Abhimanyu Kumar 1 ; Ravikumar Dumpala 1 

 Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India 
 Shreenath Engineering Industries, K-39/1, MIDC Indl.Area, Hingna Rd, Nagpur-440016, Maharashtra, India 
Publication year
2019
Publication date
Nov 2019
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2568100394
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.