PDF

EVOLUTION OF STRUCTURE, PHASE AND MECHANICAL PROPERTIES DUPLEX STAINLESS STEEL (DSS) 31803 WELDING USING GMAW WITH THE ADDITION OF CO2 TO Ar - CO2 SHIELDING GAS

Hendra Butar Butar, Sulistijono

2020enduplex stainless steelweldingmechanical propertiesGMAWphase analysis

Abstract

Language:

The purpose of this study was to analyze the effect of CO2 on the composition of the Ar-CO2 shielding gas in DSS 31803 duplex welding using GMAW on carbon deposition, ferrite fraction, microstructure, weld and HAZ mechanical properties. This study uses A (100% Ar), M1 (95% Ar + 5% CO2), M2 (90% Ar + 10% CO2), M3 (85% Ar + 15% CO2), M4 (80% Ar + 20% CO2), M5 (75% Ar + 25% CO2) and C (100% CO2). From the results of the study, the microstructure of the weld metal in each specimen contained grain boundary austenite (GBA), Widmanstätten austenite (WA), intragranular austenite (IGA), and partial transformed austenite (PTA). Scanning electron microscopy (SEM) identifies the occurrence of chrome carbide precipitation (Cr23C6) in the HAZ region in specimens M5 and C. The equilibrium phase of ferrite and austenite in weld metal areas is fulfilled in specimens A (34.8), M1 (38.9), M2 (36.4), M3 (38.4) and M5 (45.9). The highest average hardness value of Vickers in the weld metal area is found in M5 specimen which is 255 HV, while the lowest value in specimen C is 238 HV. The highest Vickers average hardness value in the heat affected zone (HAZ) is in specimen A which is 271 HV and the lowest hardness is in specimen C which is 245 HV. High tensile strength values are found in specimen M5 with value 800 MPa, while the value of low tensile strength in M4 specimens which is 652 MPa.

Download

Cite This Work

@article{c39d7f7a-9407-4cb3-91f7-3e652166a1f2,
  title={EVOLUTION OF STRUCTURE, PHASE AND MECHANICAL PROPERTIES DUPLEX STAINLESS STEEL (DSS) 31803 WELDING USING GMAW WITH THE ADDITION OF CO2 TO Ar - CO2 SHIELDING GAS},
  author={Hendra Butar Butar and Sulistijono},
  year={2020},
  language={en}
}
TY  - JOUR
TI  - EVOLUTION OF STRUCTURE, PHASE AND MECHANICAL PROPERTIES DUPLEX STAINLESS STEEL (DSS) 31803 WELDING USING GMAW WITH THE ADDITION OF CO2 TO Ar - CO2 SHIELDING GAS
AU  - Hendra Butar Butar
AU  - Sulistijono
PY  - 2020
LA  - en
ER  -

Similar Items

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

Metal Casting Processes

Unknown, Unknown

This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu

2023enPDF

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

The Nature of Solid Iron and Its Grain Structure

Unknown, Unknown

This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand

2023enPDF

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