Metalurgija最新文献_第9页

PENGUKURAN PENGARUH TEKANAN PERAH PADA TEGANGAN SISA PADUAN AlSi SQUEEZE CASTING DENGAN TEKNIK DIFRAKSI SINAR-X[Measurements of Pressure Die Effects on The Residual Stresses of Squeeze Casting AlSi Alloys using X-Ray Diffraction Techniques]

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/METALURGI.V27I3.230

Parikin Parikin, S. Suminta

引用次数: 0

INVESTIGASI EKSPERIMENTAL PERILAKU PROFIL BAJA RINGAN BERPENAMPANG PERSEGI AKIBAT INTERAKSI BEBAN TEKAN MEMUSAT DAN MOMEN LENTUR[Behaviour Experimental Investigation of A Thin-Walled Steel Square Hollow Secton Beam Affected by the Interaction of Concentrated Compressive Load and Bending Moment] [集中压缩荷载和弯矩共同作用下薄壁方形空心Secton梁的性能试验研究]

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/metalurgi.v28i1.244

Andi M. Kadir, D. Priadi, E. S. Siradj, Harkali Setiyono

引用次数: 1

PERBANDINGAN KEKERASAN DAN KETAHANAN ABRASI PROSES PELAPISAN KROMISASI, BORONISASI DAN VANADISASI PADA BESI COR KELABU[Comparison of Hardness And Abrassion Resistant of Boronizing Vanadizing and Chromizing Coated Gray Cast Iron]

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/metalurgi.v28i3.260

T. B. Romijarso

引用次数: 0

KARAKTERISASI NANOSTRUKTUR KARBON DARI GRAFIT HASIL MILLING[Characterization of Nanostructured Carbon from Graphite as Milling Product] 纳米结构碳的制备与表征

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/METALURGI.V27I3.238

Y. Yunasfi

引用次数: 0

PERGESERAN SUHU KRITIS SUPERKONDUKTOR Bi-Pb-Sr-Ca-Cu-O PADA MEDAN MAGNET TINGGI[The Shift In Critical Temperature Of Bi – Pb – Sr – Ca – Cu – O Superconductors In High Magnetic Field] PERGESERAN SUHU KRITIS超导体Bi-Pb-Sr-Ca-Cu-O PADA MEDAN磁体TINGGI[强磁场中Bi-Pb–Sr–Ca–Cu–O超导体临界温度的变化]

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/metalurgi.v29i3.296

A. Imaduddin, S. Yudanto, B. Siswayanti, Hendrik Hendrik

引用次数: 1

ANALISIS KERUSAKAN PIPA BAFFLE PADA SISTEM HEAT EXCHANGER SUATU PROSES TRANSFER PANAS[Failure Analysis of Baffle Tube on Heat Exchanger System in Heat Transfer Process] ANALISIS KERUSAKAN PIPA BAFFLE PADA SISTEM换热器SUATU PROSES TRANSFER PANAS[换热过程中换热器系统上挡板管的失效分析]

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/metalurgi.v28i3.262

E. Febriyanti

{"title":"ANALISIS KERUSAKAN PIPA BAFFLE PADA SISTEM HEAT EXCHANGER SUATU PROSES TRANSFER PANAS[Failure Analysis of Baffle Tube on Heat Exchanger System in Heat Transfer Process]","authors":"E. Febriyanti","doi":"10.14203/metalurgi.v28i3.262","DOIUrl":"https://doi.org/10.14203/metalurgi.v28i3.262","url":null,"abstract":"FAILURE ANALYSIS OF BAFFLE TUBE ON HEAT EXCHANGER SYSTEM IN HEAT TRANSFER PROCESS. This paper discussed about combination between erosion attack and corrosion process as a factor cause of baffle tube leaking in heat exchanger system and given some solution to prevent similar case in future. Heat exchangers transfer heat from a hot fluid to a colder fluid through the combined mechanisms of conduction and forced convection. When the heat exchanger fail, all of the processing system could be affected. In this research the failed baffle tubes of heat exchanger were investigated by failure analysis methods to find the caused of the failure. Several examinations were carried out to the baffle tubes to obtain detailed data for analysis. Examinations are carried out such as visual and fractography, microstructure, hardness testing, chemical composition analysis of baffle tube material, SEM and EDS. Visual examination shows wall thinning which caused by erosion attack and corrosion product at outside surfaces of baffle tube. Additional data obtained from EDS analysis confirm aggresive / corrosive ion such as Sulphur ion (ion S 2) which spreaded around pipe surface investigated. Erosion attack is caused by steam burst from another pipe which have experienced leaking at steam drum. So, it can be concluded that the cause of failure are combination between erosion attack and corrosion process on the outside surfaces of baffle tube.","PeriodicalId":18462,"journal":{"name":"Metalurgija","volume":"28 1","pages":"185-194"},"PeriodicalIF":0.6,"publicationDate":"2017-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44110366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

KINETIKA REAKSI PELARUTAN TEMBAGA DARI MALACHITE KE DALAM LARUTAN ASAM SULFAT[Reaction Kinetics of Copper Dissolution for Malachite into Sulfuric Acid Solution] [铜在硫酸溶液中溶解孔雀石的反应动力学]

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/metalurgi.v28i3.264

R. Subagja, L. Andriyah

引用次数: 1

MECHANOCHEMICAL SYNTHESIS OF POTASSIUM MAGNESIUM PHOSPHATE FOR APPLICATION AS SLOW RELEASE FERTILIZER MATERIAL 机械化学合成磷酸钾镁作为缓释肥料材料

IF 0.6

Metalurgija Pub Date : 2017-03-12 DOI: 10.14203/metalurgi.v28i1.242

S. Solihin

引用次数: 0

PENGGUNAAN SISTEM LAPIS LINDUNG JENIS POLYURETAN UNTUK APLIKASI DI DAERAH MARITIM[Using Polyurethane Type for Coating System at Maritim Environment] 环保型聚氨酯海洋应用环境系统[在海洋环境中使用聚氨酯型涂料系统]