Detail PENGARUH SIMULASI POST WELDING HEAT TREATMENT (PWHT) TERHADAP SIFAT MEKANIK KAMPUH LAS KARBONMANGAN TERDEPOSIT Bibliografi Author: NGAMELUBUN, AVE MANUEL ; Sinaga, Markus Makdin (Advisor); Basuki, Widodo Widjaja (Advisor) Topik: weld metal; low carbon steel; PWHT; mechanical properties testing; microstructure observation Bahasa: (ID )     Penerbit: Program Studi Teknik Mesin Fakultas Teknik Unika Atma Jaya     Tempat Terbit: Jakarta    Tahun Terbit: 2018     Jenis: Theses - Undergraduate Thesis Fulltext: 95-AVE MANUEL NGAMELUBUN-2014041075.pdf (2.5MB; 6 download) Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: Non-tandon: tidak ada Tandon: 1  Lihat Detail Induk Abstract Post Welding Heat Treatment (PWHT) in high pressure pipe is a process outside the welding which aims to minimize residual stress from high pressure pipe connection process by SMAW welding method. The PWHT process is carried out throughout the welding area including welding and indirectly affecting the mechanical properties and microstructure of the weld metal. In this research, PWHT simulation was conducted to find out the change of mechanical properties and microstructure of welding welding with carbon content and manganese welding composition of 0,09% and 0,13%. The welding compound is obtained from welding with SMAW welding method and variation of PWHT process conditions consisting of all welded (Non PWHT), temperature of 635oC with holding time of 6 hours and 12 hours and temperature of 665oC with 15 hours hold time. It was found that strength, toughness and hardness decreased and the ductility of the welding camp increased. The longer the time of detention the strength, the toughness and the hardness decreases and the ductility increases. The morphology of the welded microstructure of the weld on the top bead area has changed in size and number of grains based on visual observation. In the microstructure, the size and number of grains after the PWHT process is performed to become larger and more less. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Lihat Sejarah Pengadaan  Konversi Metadata   Kembali

Copyright © 2006, 2007 Unika Atma Jaya, all rights reserved