This paper investigates the weldability, metallurgical and mechanical properties of the dissimilar joints of Inconel 625 and AISI 304. Dissimilar joints were obtained by gas tungsten arc welding process employing ERNiCrMo-3. Tensile fracture occurred at the parent metal of AISI 304 in all the trials. The structure-property relationships on these dissimilar weldments were evaluated using the combined techniques of optical microscopy and SEM /EDAX techniques.

Devendranath Ramkumar K

Department of Manufacturing Engineering

School of Mechanical Engineering

Vellore Campus

Arivazhagan N

Narayanan S

Mithilesh P

Varun D

Reddy A.R.G

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Procedia Engineering

Materials Today: Proceedings

Evaluation of residual stress in multipass dissimilar butt joints using X-ray diffraction

In the present analysis, thermo-mechanical process was employed to study the thermal and structural behaviour of three pass dissimilar butt-joints of SS316L to Inconel625 alloys. The temperatures evolution and residual stresses developed in the weldments were reported for each pass in the transverse direction to fusion zone. The Ansys Parametric Design Language (APDL) used for modelling and analysis of welding process with the double ellipsoidal heat source. The temperature dependent thermal and mechanical properties used in the simulation process. The residual stress is compressive in SS316L side compared to Inconel 625. The residual stress is within the yield limits of both base materials. The results obtained from the simulation process will be helpful for maintaining the structural integrity.

International Journal of Engineering & Technology

Evaluation of residual stresses in multipass dissimilar butt-welded of SS316L to Inconel625 using FEA

PCGTAW the heat required to melt the base material is supplied only during the peak current pulses allowing the heat to dissipate into the base material. In the present investigation, an attempt has been made to multipass weld the Inconel to Inconel material using the PCGTAW; ERNiCrMo-3 filler wire is used for the experimentation. The investigation involves metallurgical and mechanical properties of pulsed current gas tungsten arc welding onInconel 600. In this work, an attempt has been made to investigate the double v-grooved weldability; metallurgical and mechanical properties of the PCGTA welded with Inconel 600 similar materials, mechanical property relationships of Inconel 600 weldments are discussed in detail.

Multipass Welding On Inconel Material with Pulsed Current Gas Tungsten Arc Welding

Dissimilar metal welding involving AISI 304 and Monel 400 finds widespread use in marine and offshore environments for the fabrication of heat exchangers, evaporators, piping and vessels in petrochemical and power generation industries. However studies on the performance of such weldments are scantly found in the literature even though the individual metals have higher corrosion resistance and strength. This paper reports the work carried out on welding of AISI 304 and Monel 400 using Gas Tungsten Arc Welding (GTAW) technique to examine the weldability, mechanical and metallurgical properties. Investigations have been carried out on the hot corrosion behavior of these joints subjected to cyclic air oxidation and K2SO4&nbsp;+&nbsp;NaCl (60%) molten salt environment at 600&nbsp;°C. A comparative analysis was carried out on these weldments for two different filler metals such as E309L and ENiCu-7. The oxide scales formed on the various zones of the weldment have been characterized systematically using surface analytical techniques. Weld zone was found to be more susceptible to degradation than base metals used. The effect of filler materials on the hot corrosion is discussed. The studies reported in this paper would be beneficial for fabricators embracing this type of dissimilar weldments in the petrochemical and power generation industries.

Materials & Design

Effect of filler materials on the performance of gas tungsten arc welded AISI 304 and Monel 400

Materials Characterization

Characterization of microstructures and mechanical properties of Inconel 617/310 stainless steel dissimilar welds

Journal of Materials Processing Technology

Dissimilar welding of AISI 310 austenitic stainless steel to nickel-based alloy Inconel 657

Microstructural characterization of dissimilar welds between alloy 800 and HP heat-resistant steel

MATERIALS TRANSACTIONS

Microstructual Study of the Dissimilar Joints of Alloy 690 and SUS 304L Stainless Steel

Investigations on Dissimilar Weldments of Inconel 625 and AISI 304

Journal	Data powered by TypesetProcedia Engineering
Publisher	Data powered by TypesetElsevier BV
ISSN	1877-7058
Open Access	Yes