PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252

Metal joint with welding system is increasingly used. i.e structure, piping or machine constuction. Some of the problems on welding is recidual stress dan over hardness which can lower weld toughness stress corrosion cracking. One effort to solve this problem is PWHT. PWHT has multiple functions, in...

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Main Authors: , IPICK SETIAWAN . ST, , M. Noer Ilman, S.T., M.Sc., Ph.D.
Format: Theses and Dissertations NonPeerReviewed
Published: [Yogyakarta] : Universitas Gadjah Mada 2011
Subjects:
ETD
Online Access:https://repository.ugm.ac.id/89613/
http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51641
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spelling id-ugm-repo.896132014-08-20T02:51:56Z https://repository.ugm.ac.id/89613/ PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252 , IPICK SETIAWAN . ST , M. Noer Ilman, S.T., M.Sc., Ph.D. ETD Metal joint with welding system is increasingly used. i.e structure, piping or machine constuction. Some of the problems on welding is recidual stress dan over hardness which can lower weld toughness stress corrosion cracking. One effort to solve this problem is PWHT. PWHT has multiple functions, in addition to reducing residual stress, among others, PWHT increases ductility and improves toughness in weld metal and HAZ regions. Heating process with various temperature is expected to make optimum PWHT temperature. The experiment methods were carried out by depositing double V groove welds using submerged arc welding (SAW) with current of 375 A , voltage of 35 V and heat input of 2,8 kj/mm. Post weld heat treatment were carried out by holding the weld at various temperature of 450oC, 550oC and 650oC for 3 hour followed by furnace cooled. Subsequently, a sequence of test was carried out including microstructural examination, hardness measurement, tensile test and corrosion. Result show that increasing PWHT temperature lowers tensil strength but improves weld toughness. The optimum value is achieved at a temperature of 550o C with the toughness value of 81 J at 0O C temperarture. [Yogyakarta] : Universitas Gadjah Mada 2011 Thesis NonPeerReviewed , IPICK SETIAWAN . ST and , M. Noer Ilman, S.T., M.Sc., Ph.D. (2011) PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51641
institution Universitas Gadjah Mada
building UGM Library
country Indonesia
collection Repository Civitas UGM
topic ETD
spellingShingle ETD
, IPICK SETIAWAN . ST
, M. Noer Ilman, S.T., M.Sc., Ph.D.
PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252
description Metal joint with welding system is increasingly used. i.e structure, piping or machine constuction. Some of the problems on welding is recidual stress dan over hardness which can lower weld toughness stress corrosion cracking. One effort to solve this problem is PWHT. PWHT has multiple functions, in addition to reducing residual stress, among others, PWHT increases ductility and improves toughness in weld metal and HAZ regions. Heating process with various temperature is expected to make optimum PWHT temperature. The experiment methods were carried out by depositing double V groove welds using submerged arc welding (SAW) with current of 375 A , voltage of 35 V and heat input of 2,8 kj/mm. Post weld heat treatment were carried out by holding the weld at various temperature of 450oC, 550oC and 650oC for 3 hour followed by furnace cooled. Subsequently, a sequence of test was carried out including microstructural examination, hardness measurement, tensile test and corrosion. Result show that increasing PWHT temperature lowers tensil strength but improves weld toughness. The optimum value is achieved at a temperature of 550o C with the toughness value of 81 J at 0O C temperarture.
format Theses and Dissertations
NonPeerReviewed
author , IPICK SETIAWAN . ST
, M. Noer Ilman, S.T., M.Sc., Ph.D.
author_facet , IPICK SETIAWAN . ST
, M. Noer Ilman, S.T., M.Sc., Ph.D.
author_sort , IPICK SETIAWAN . ST
title PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252
title_short PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252
title_full PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252
title_fullStr PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252
title_full_unstemmed PENGARUH POST WELD HEAT TREATMENT TERHADAP SIFAT FISIS, MEKANIS DAN KOROSI SAMBUNGAN LAS SPIRAL SAW PADA PIPA BAJA ASTM A252
title_sort pengaruh post weld heat treatment terhadap sifat fisis, mekanis dan korosi sambungan las spiral saw pada pipa baja astm a252
publisher [Yogyakarta] : Universitas Gadjah Mada
publishDate 2011
url https://repository.ugm.ac.id/89613/
http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51641
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