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All Journal Jurnal Teknik Mesin SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Jurnal Mechanical Jurnal IPTEK Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Elemen Journal of Applied Sciences, Management and Engineering Technology (JASMET) Jurnal Teknik Mesin Prosiding Seminar Nasional Teknologi Industri Berkelanjutan
Vuri Ayu Setyowati
Institut Teknologi Adhi Tama Surabaya
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Jurnal Teknik Mesin

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The Effect of TIG Welding for 304 and 304L Stainless Steel to Mechanical Properties , XRD and EDX Characterization as Pressure Vessel Materials Vuri Ayu Setyowati; Eriek Wahyu Restu Widodo
Jurnal Teknik Mesin (JTM) Vol 7, No 2 (2017)
Publisher : LP2M - Institut Teknologi Padang

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Abstract

The aim of this paper is to analyze the effect of TIG welding for Austenitic Stainless Steel type 304 and 304L as pressure vessel materials. These materials have different carbon content. 304 SS and 304L SS of 6mm metal sheet were used as observed materials. The groove angel for welded specimens is 60o and TIG welding current is 100A. Current and voltage for welding process are set constant. For analyzing mechanical properties, tensile test was used to calculate the yield strength, tensile strength, and elongation. X-Ray Diffraction (XRD) and X-Ray Spectroscopy (EDX) test were used to analyze the phase and element compositions, respectively. The tensile strength of welded 304 SS was decrease to 425,64 MPa compared to 304 SS which is 466,67 MP to 422,22 MPa. The highest elongation of 22% among to welded 304L SS and it has good ductility. Based on, XRD measurements, all specimens have austenite peaks but 304L SS and welded 304L SS have δ-ferrite peaks. EDX measurement was also used to explain the element composition supporting mechanical properties.
Analysis of Current, Filler Metal, and Groove on Tensile Strength and Hardness of Dissimilar Welding Using Gas Tungsten Arc Welding (GTAW) Eriek Wahyu Restu Widodo; Vuri Ayu Setyowati; Suheni Suheni; Amang Kuswanto; M. Wiji Santoso
Jurnal Teknik Mesin (JTM) Vol 8, No 2 (2018)
Publisher : LP2M - Institut Teknologi Padang

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Abstract

Dissimilar welding commonly used on many industries, for example power plan field. This paper presents the investigations carried out to study the influence of current, filler metal, and groove on 304 Stainless Steel to AISI 1040 Carbon Steel dissimilar joints. Gas Tungsten Arch Welding (GTAW) was conducted to join the both of base metals. 100 and 120 Ampere of current were conducted on this research, V and double-V groove with 70o of the angle as well. The maximum hardness was obtained 623.2 HVN of ER 70S-6 filler metal with 120 A of current and V groove. While the maximum tensile strength was obtained from the joint using ER 308L with 100 A of current and V-groove of 673.74 MPa. The HAZ region was obtained from the joint using double-V groove was wider than HAZ region of joint using V-groove according the macrostructure image of the joints.
Co-Authors Afira Ainur Rosidah Amang Kuswanto Eriek Wahyu Restu Widodo Hery Irawan, Hery Iftika Philo Wardani Ilham Prajala Samudra Ilham Qiromi M. Wiji Santoso Mohammad Yusuf Sulaiman Muhamad Febrianto Nasrul Amin R. Achmad Supriyadi Saiful Fuadi Firdaus Suheni Suheni