PDF

Heat treatment effects on Inconel 625 components fabricated by wire + arc additive manufacturing (WAAM)— part 1: microstructural characterization

A. N. M. Tanvir, Md. R. U. Ahsan

2019eninconeladditive manufacturingmicrostructureheat treatmentwaam

Abstract

Language:

Wire + arc additive manufacturing (WAAM) is a versatile, low-cost, energy-efficient technology used in metal additive manufacturing. This WAAM process uses arc welding to melt a wire and form a three-dimensional (3D) object using a layer-by-layer stacking mechanism. In the present study, a Ni-based superalloy wire, i.e., Inconel 625, is melted and deposited additively through a cold metal transfer (CMT)-based WAAM process. The deposited specimens were heat-treated at 980 °C (the recommended temperature for stress-relief annealing) for 30, 60, and 120 min and then water quenched to investigate the effect of heat treatment on microstructure and phase transformation and to identify the optimum heat treatment condition. Microstructural results show that the heat treatment, in general, eliminates the brittle Laves phases regardless of the time without changing the grain morphology. However, an increment in the amount of the delta phase is observed with the longer heat treatment periods. Additionally, the size of MC (metal carbide) of Nb is also observed to increase with heat treatment time. This study provides an in-depth understanding of the correlation between heat treatment time and microstructure in additively manufactured Inconel 625, which can facilitate determining the optimum heat treatment condition in a later study.

Download

Cite This Work

@article{77b4de37-6488-4afa-a8b3-1e50424ddb8c,
  title={Heat treatment effects on Inconel 625 components fabricated by wire + arc additive manufacturing (WAAM)— part 1: microstructural characterization},
  author={A. N. M. Tanvir and Md. R. U. Ahsan},
  year={2019},
  language={en}
}
TY  - JOUR
TI  - Heat treatment effects on Inconel 625 components fabricated by wire + arc additive manufacturing (WAAM)— part 1: microstructural characterization
AU  - A. N. M. Tanvir
AU  - Md. R. U. Ahsan
PY  - 2019
LA  - en
ER  -

Similar Items

Quenching theory and technology B Liéséciâc; International Federation for Heat Treatment and ( WeLib.org )

2026enPDF

THE EFFECT VANADIUM CONTENT AND HEAT TREATMENT ON WEAR RESISTANCE AND FRACTURE TOUGHNESS OF FE-CR-C-V ALLOY

Mirjana Filipović, Željko Kamberović, Marija Korać

Experimental results indicate that the volume fraction of the carbide phase, carbide size and distribution had an important influence on the wear resi

2014enPDF

AN INTRODUCTION TO THE METALLURGY OF STEEL AND ITS ALLOYS

Robert A. Francis

This document serves as a comprehensive introduction to the metallurgy of steel and its alloys, focusing on various aspects of iron and steel manufact

2017enPDF

Artificial intelligence-aided materials design: AI-algorithms and case studies on alloys and metallurgical processes

Rajesh Jha, Bimal Kumar Jha

This book describes the application of artificial intelligence (AI) and machine learning (ML) concepts to develop predictive models that can be used t

2022enPDF

Process Engineering and Plant Design

Siddhartha Mukherjee

This book provides a comprehensive overview of the critical aspects of industrial process engineering and plant design, addressing the complexities an

2022enPDF

BLAST FURNACE IRONMAKING: Analysis, Control, and Optimization

Ian Cameron, Mitren Sukhram

This book delves into the intricate processes involved in blast furnace ironmaking, emphasizing the analysis, control, and optimization of operations.

2020enPDF