Metallurgical Engineering

Metallurgical Engineering

Effect of Number of Passes and Interface Layer on the Microstructure and Wear Resistance of the AISI 410Martensitic Stainless Steel Clad by SMAW on PlaneCarbon SteelPlates

Document Type : Research Paper

Authors
Hamed Sabet 1
farhad abdi 2
mohammad atarha 2
1 Associate Professor, Department of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran.
2 M.Sc of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran.
10.22076/me.2020.109603.1249
Abstract
In the present study, ASTM A516-Grade 70 steel sheets were coated using E410 and E309 electrodes via Shielded Metal Arc Welding (SMAW) process in different number of welding passes. To evaluate the microstructure and properties of the clad layer, metallographic examinations, hardness test, wear test and scanning electron microscope (SEM) from the worn surfaces were used. Microstructural examinations revealed that, all the samples contain ferrite and martensite in the microstructure with different volume fraction. The results showed that, the volume fraction of martensite increased by increasing the number of welding passes. Also, the results of hardness test revealed an increase in the hardness by increasing the number of the number of welding passes. Wear test results showed that, for some samples with higher hardness value, wear resistancewas decreased. Evaluation of the worn surfaces revealed that, in the case of the sample welded using E410 electrode without interlayer, abrasive and oxidative wear mechanisms were dominated. In the case of the sample welded using E309 electrode interlayer and E410 overlay, abrasive, oxidative and galling were observed.
Keywords
Keywords: Cladding
Martensitic Stainless Steel
Microstructure
Wear Resistance
SMAW
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  • Receive Date 14 June 2019
  • Revise Date 16 February 2020
  • Accept Date 03 March 2020