Effect of CaF2, FeMn and NiO additions on impact strength and hardness in submerged arc welding using developed agglomerated fluxes

2016 ◽  
Vol 667 ◽  
pp. 158-169 ◽  
Author(s):  
Brijpal Singh ◽  
Zahid A. Khan ◽  
Arshad Noor Siddiquee ◽  
Sachin Maheshwari
Metallurgist ◽  
2018 ◽  
Vol 62 (3-4) ◽  
pp. 254-260 ◽  
Author(s):  
L. A. Efimenko ◽  
T. S. Esiev ◽  
D. V. Ponomarenko ◽  
S. P. Sevast’yanov ◽  
I. Yu. Utkin

Author(s):  
Lochan Sharma ◽  
Rahul Chhibber

The present study aims at investigating the effect of submerged arc welding fluxes for enhanced corrosion resistance of structural steel welds. By varying the basicity index of submerged arc welding fluxes the corrosion resistance and mechanical properties of weld metal such as tensile strength, impact strength, microhardness in submerged arc weldments were evaluated. The result shows that with the increase in bascity index tensile strength of weld specimen reduced while impact strength and microhardness value increased. Maximum microhardness (288 HV) was observed for flux 2 while base metal show minimum microhardness value (205 HV). Flux 5 gives maximum impact strength (94.17 J) as compared to the base metal (80 J). This is due to the reduced content of oxygen in weld metal which increases the weld metal impact toughness. Corrosion resistance of weld specimen increased as compared to the base metal. Ductile fracture mode and shear lip or tears were observed in the weld zone. Shear dimples and shear lips were more severe in base metal as well as weld metal impact specimens due to the rapid effect of external forces on the impact test. The banded microstructure of delta ferrite and austenite was observed in the base metal. Fine grains of ferrite and pearlite at the center and edges were present in the weld zone.


2020 ◽  
Vol 62 (10) ◽  
pp. 1010-1016
Author(s):  
Mustafa Kaptanoglu ◽  
Akin Odabasi

Alloy Digest ◽  
2003 ◽  
Vol 52 (4) ◽  

Abstract Metrode 20.70 Nb is a nickel-base consumable with a nominal composition of Ni, 20% Cr, and 2.5% Nb. This alloy is used to join a variety of oxidation-resistant nickel alloys. The product is a solid wire for tungsten inert gas (TIG), metal inert gas (MIG), and submerged arc welding (SAW). This datasheet provides information on tensile properties as well as fracture toughness. It also includes information on joining. Filing Code: Ni-606. Producer or source: Metrode Products Ltd.


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