Microstructure Evolution and Bonding Strength of Brazed Joint of Stainless Steel and Copper

Roy, Rajat K and Panda, A K and Mitra, A (2013) Microstructure Evolution and Bonding Strength of Brazed Joint of Stainless Steel and Copper. Indian Welding Journal, 46(1) . pp. 1-5.

[img]PDF - Accepted Version
Restricted to NML users only. Others may use ->



The joining behaviour between stainless steel and copper has an importance in scientific and engineering applications such as high energy ring vacuum chambers and International Thermonuclear Fusion Experiment Reactor (ITER). In this research, the rapidly solidified foils of nominal composition 50Cu-40Mn-10Ni (C50) are used as a filler alloy for brazing between stainless steel (304 SS) and copper (Cu) plates. It is examined that C50 foil makes a good contact joint between two dissimilar metal plates of different thermal conductivities. The brazed region is mostly free from any porosities and intermetallic compounds, emphasizing on the distribution of solid solution phases. It causes high bonding strength of 304 SS-Cu butt joint at low brazing O temperature (B =920 C) with a fracture at the joint area. On the other hand, the fracture occurs at Cu base T metal for B = 980°C. The fractography also shows the presence of several dimples at Cu substrate and T severely deformed region at stainless steel substrate, representing a good quality bonding between 304SS and Cu plates.

Item Type:Article
Official URL/DOI:http://www.iiwindia.com/
Uncontrolled Keywords:Brazing, Diffusion, Electron Microscopy, Solid solution phases, Bonding Strength.
Divisions:Material Science and Technology
ID Code:6967
Deposited By:Dr Rajat Roy
Deposited On:14 Jul 2014 17:28
Last Modified:16 Jul 2014 16:30
Related URLs:

Repository Staff Only: item control page