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Materials Science and Engineering Commons™
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Articles 1 - 30 of 520
Full-Text Articles in Materials Science and Engineering
Analysis Of The Effect Of Different Surface Preparation Methods On Corrosion Resistance And Adhesion Strength Of Astm A36 Steel Substrate With Surface Tolerant Epoxy Paint As Coating Material, Irwan Wijaya Santoso, Daffa Aqila, Rini Riastuti, Rizal Tresna Ramadhani
Analysis Of The Effect Of Different Surface Preparation Methods On Corrosion Resistance And Adhesion Strength Of Astm A36 Steel Substrate With Surface Tolerant Epoxy Paint As Coating Material, Irwan Wijaya Santoso, Daffa Aqila, Rini Riastuti, Rizal Tresna Ramadhani
Journal of Materials Exploration and Findings
In the industrial world, to extend the service life of materials, protection methods are carried out to slow down the material's corrosion rate. The protection method that is often used is the coating method. The coating method is a protection method by coating the substrate material using a coating material to prevent contact between the substrate material and the environment. In this research, the substrate material used is ASTM A36 steel and the coating material used is Surface Tolerant Epoxy paint. The independent variable used in this study lies in the surface preparation method which consists of: solvent cleaning, hand …
Combined Risk Based Inspection And Fault Tree Analysis For Repetitive 3-Phase Line Piping Leakage At West Java Offshore Topside Facility, Dona Yuliati, Akhmad Herman Yuwono, Datu Rizal Asral, Donanta Dhaneswara
Combined Risk Based Inspection And Fault Tree Analysis For Repetitive 3-Phase Line Piping Leakage At West Java Offshore Topside Facility, Dona Yuliati, Akhmad Herman Yuwono, Datu Rizal Asral, Donanta Dhaneswara
Journal of Materials Exploration and Findings
Hydrocarbon releases might result in serious consequences in various aspects. In addition to the contribution to environmental pollution, repetitive leakages need high repair costs. This study aim is to minimize potential repetitive leakage for other typical 3-phase piping systems. We conducted the risk assessment by adopting Risk Based Inspection (RBI) API 581 to identify risk level, calculating piping lifetime, recommended inspection plan and mitigations. The most relevant root causes can be obtained through quantitative Fault Tree Analysis (FTA). Observation and investigation was taken from eight 3-phase piping systems that experienced repetitive leakages. It has been found that the risk level …
Nitrogen Gas Quenching Pressure Effect On Bs S155 Alloy Steel In Vacuum Furnace, Agus Mulyadi Hasanudin, Eddy Sumarno Siradj
Nitrogen Gas Quenching Pressure Effect On Bs S155 Alloy Steel In Vacuum Furnace, Agus Mulyadi Hasanudin, Eddy Sumarno Siradj
Journal of Materials Exploration and Findings
The production of metal and alloy products requires the use of heat treatment, when during the heat treatment process, quenching is a crucial step. The quenching medium can be anything from water, a salt bath, oil, air and gas. In a vacuum furnace, pressurized gas, most frequently nitrogen (N2) gas, serves as one of the quenching mediums. One of the drawbacks of the quenching process is the distortion and dimensional change of the parts. This paper aims to investigate the influence of nitrogen gas quenching pressure on the distortion and dimensional change of aerospace actuator gear planet parts …
Experimental And Machine Learning Studies On Chitosan-Polyacrylamide Copolymers For Selective Separation Of Metal Sulfides In The Froth Flotation Process, Keitumetse Monyake, Taihao Han, Danish Ali, Lana Z. Alagha, Aditya Kumar
Experimental And Machine Learning Studies On Chitosan-Polyacrylamide Copolymers For Selective Separation Of Metal Sulfides In The Froth Flotation Process, Keitumetse Monyake, Taihao Han, Danish Ali, Lana Z. Alagha, Aditya Kumar
Mining Engineering Faculty Research & Creative Works
The froth flotation process is extensively used for the selective separation of valuable base metal sulfides from uneconomic associated minerals. However, in this complex multiphase process, various parameters need to be optimized to ensure separation selectivity and peak performance. In this study, two machine learning (ML) models, artificial neural network (ANN) and random forests (RF), were used to predict the efficiency of in-house synthesized chitosan-polyacrylamide copolymers (C-PAMs) in the depression of iron sulfide minerals (i.e., pyrite) while valuable base metal sulfides (i.e., galena and chalcopyrite) were floated using nine flotation variables as inputs to the models. The prediction performance of …
Machinability Of High Mn Steel Using Tool Life Criteria, Dika Handayani, Victor F. Okhuysen, Nicole Wagner
Machinability Of High Mn Steel Using Tool Life Criteria, Dika Handayani, Victor F. Okhuysen, Nicole Wagner
Engineering Faculty Articles and Research
High Mn steel alloys have shown to provide both high strength and ductility. However, current literature offers limited guidance on the machinability of these steel alloys. Therefore, this work provides turning recommendations for high Mn steel that is based on tool life data. Several indexable carbide inserts with various rake angles were used to machine cast billets of high Mn steel. Turning characteristics from various feed rates, cutting speeds, and depths of cut were analyzed. Through a design of experiments, it was determined that the feed rate was the most significant factor affecting tool life and that a tool with …
Dynamic Rbi With Central Difference Method Approach In Calculation Of Uniform Corrosion Rate: A Casestudy On Gas Pipelines, M.Riefqi Dwi Alviansyah, Fernanda Hartoyo, Zahra Nadia Nurullia, Ari Kurniawan
Dynamic Rbi With Central Difference Method Approach In Calculation Of Uniform Corrosion Rate: A Casestudy On Gas Pipelines, M.Riefqi Dwi Alviansyah, Fernanda Hartoyo, Zahra Nadia Nurullia, Ari Kurniawan
Journal of Materials Exploration and Findings
The oil and gas industry generally uses a piping system to drain fluids. Even though the pipes used have been well designed, the use of pipes as a means of fluid transportation still provides the possibility of failure that can occur at any time, one of which is due to uniform corrosion. The use of standard Risk Based Inspection (RBI) according to the API RBI 581 document has been widely used to anticipate potential failures to pipe components. The use of standard RBI can reduce the risk of failure significantly. Because the standard RBI considers the component risk value to …
Removal Of Selenium And Heavy Metals From Coal Combustion Residuals Wastewater Using Surface Modified Iron Based Media, Madan Tandukar, Alex Korff, Andrew Vincent, Chris Hardin
Removal Of Selenium And Heavy Metals From Coal Combustion Residuals Wastewater Using Surface Modified Iron Based Media, Madan Tandukar, Alex Korff, Andrew Vincent, Chris Hardin
World of Coal Ash Proceedings
No abstract provided.
Contents, Jaka Fajar Fatriansyah
Contents, Jaka Fajar Fatriansyah
Journal of Materials Exploration and Findings
No abstract provided.
Preface Of Volume 1 Issue 1 On Journal Of Materials Exploration And Findings (Jmef), Jaka Fajar Fatriansyah
Preface Of Volume 1 Issue 1 On Journal Of Materials Exploration And Findings (Jmef), Jaka Fajar Fatriansyah
Journal of Materials Exploration and Findings
No abstract provided.
The Optimization Of Failure Risk Estimation On The Uniform Corrosion Rate With A Non-Linear Function, Fernanda Hartoyo, Jaka Fajar Fatriansyah, Imam Abdillah Mas'ud, Farhan Rama Digita, Hanna Ovelia, Datu Rizal Asral
The Optimization Of Failure Risk Estimation On The Uniform Corrosion Rate With A Non-Linear Function, Fernanda Hartoyo, Jaka Fajar Fatriansyah, Imam Abdillah Mas'ud, Farhan Rama Digita, Hanna Ovelia, Datu Rizal Asral
Journal of Materials Exploration and Findings
Failures in the oil and gas pipeline system are conditions that must be avoided and anticipated because the losses due to the failures can occur at a very high level. Internal corrosion is one of the significant causes of the failures in pipeline systems. In addition, this type of corrosion is due to the high content of carbon dioxide and other corrosive substances in crude oil and natural gas. Therefore, an optimal inspection scheduling system is required to prevent the possibility of pipeline failures due to corrosion and to avoid any overspending on the budget due to excessive inspection scheduling. …
Challenges & Pragmatic Solutions For The Design And Construction Of A 300-Acre Ccr Landfill Located In The Southwestern Us - A Case Study, Andy Lucas, Jason Pokorny
Challenges & Pragmatic Solutions For The Design And Construction Of A 300-Acre Ccr Landfill Located In The Southwestern Us - A Case Study, Andy Lucas, Jason Pokorny
World of Coal Ash Proceedings
No abstract provided.
Groundwater Compliance & Strategy Insights For Ccr Rule Stakeholders, Sheryl Smith, Mark Johnson
Groundwater Compliance & Strategy Insights For Ccr Rule Stakeholders, Sheryl Smith, Mark Johnson
World of Coal Ash Proceedings
No abstract provided.
Ecological Risk Assessment For Coal Combustion Residuals And Herrington Lake Adjacent To The Kentucky Utilities E.W. Brown Generating Station, Mary Sorensen, Alex Smith, Mark Nielsen
Ecological Risk Assessment For Coal Combustion Residuals And Herrington Lake Adjacent To The Kentucky Utilities E.W. Brown Generating Station, Mary Sorensen, Alex Smith, Mark Nielsen
World of Coal Ash Proceedings
No abstract provided.
Epri Research On Groundwater-Surface Water Interactions Near Coal Combustion Product Sites, Bruce Hensel, Jeff Thomas, Tim Towey, Anthony Aufdenkampe
Epri Research On Groundwater-Surface Water Interactions Near Coal Combustion Product Sites, Bruce Hensel, Jeff Thomas, Tim Towey, Anthony Aufdenkampe
World of Coal Ash Proceedings
No abstract provided.
Cqa - A Common Sense Approach At Becoming The Mvp On Your Next Project, James Price, Michael Fisher, John Metcalf
Cqa - A Common Sense Approach At Becoming The Mvp On Your Next Project, James Price, Michael Fisher, John Metcalf
World of Coal Ash Proceedings
No abstract provided.
State Of The Practice For Compaction Quality Of Dry Stack Ccr Storage Facilities, Bruce Cunningham, Pavana Vennapusa, David J. White, Robert Eric Hageman
State Of The Practice For Compaction Quality Of Dry Stack Ccr Storage Facilities, Bruce Cunningham, Pavana Vennapusa, David J. White, Robert Eric Hageman
World of Coal Ash Proceedings
No abstract provided.
Hybrid Closure Approach: Constructing Bidding Lessons Learned, Brian Harthun, P.E.
Hybrid Closure Approach: Constructing Bidding Lessons Learned, Brian Harthun, P.E.
World of Coal Ash Proceedings
No abstract provided.
Ccr Beneficial Use Data Capture And Reporting, Joe Ploetz, Kevin Foody
Ccr Beneficial Use Data Capture And Reporting, Joe Ploetz, Kevin Foody
World of Coal Ash Proceedings
No abstract provided.
Geochemical Explanations For Strong Natural Attenuation Of Molybdenum, Selenium, And Lithium In A Groundwater Plume, Jacob Chu, J. P. Brandenburg
Geochemical Explanations For Strong Natural Attenuation Of Molybdenum, Selenium, And Lithium In A Groundwater Plume, Jacob Chu, J. P. Brandenburg
World of Coal Ash Proceedings
No abstract provided.
Construction Risk Management Considerations For Ccr Surface Impoundment Closures, John P. Seymour, Chris Robb
Construction Risk Management Considerations For Ccr Surface Impoundment Closures, John P. Seymour, Chris Robb
World of Coal Ash Proceedings
No abstract provided.
Ccr Landfill Construction & Operation Under Subtitle D, Thomas R. Gredell
Ccr Landfill Construction & Operation Under Subtitle D, Thomas R. Gredell
World of Coal Ash Proceedings
No abstract provided.
Monitoring Well Integrity And Performance Part Ii - Seeing The Benefits, Bryan R. Hansen, Jacob G. Gruzalski, Thomas S. Dicken, Rock J. Vitale
Monitoring Well Integrity And Performance Part Ii - Seeing The Benefits, Bryan R. Hansen, Jacob G. Gruzalski, Thomas S. Dicken, Rock J. Vitale
World of Coal Ash Proceedings
No abstract provided.
Use Of A Net Environmental Benefit Analysis To Evaluate Remedial Options To Address Coal Ash – Case Studies, Joseph Nicolette, Michael Rockel
Use Of A Net Environmental Benefit Analysis To Evaluate Remedial Options To Address Coal Ash – Case Studies, Joseph Nicolette, Michael Rockel
World of Coal Ash Proceedings
No abstract provided.
Use Of Tritium-Helium Isotopes For Vertical Delineation Of Ccr Constituents In Groundwater, Lane Dorman, Lauren Fitzgerald, Ryan Fimmen, Robert Trey Singleton
Use Of Tritium-Helium Isotopes For Vertical Delineation Of Ccr Constituents In Groundwater, Lane Dorman, Lauren Fitzgerald, Ryan Fimmen, Robert Trey Singleton
World of Coal Ash Proceedings
No abstract provided.
Hybrid Closure Approach: Design Investigation Review, Brian Sperrazza, P.E., P.G.
Hybrid Closure Approach: Design Investigation Review, Brian Sperrazza, P.E., P.G.
World of Coal Ash Proceedings
No abstract provided.
Building Defensibility For Mna Remedy Selection, Michael Healey, Jeff Roberts, Sarah Cronk, Andrzej Przepiora
Building Defensibility For Mna Remedy Selection, Michael Healey, Jeff Roberts, Sarah Cronk, Andrzej Przepiora
World of Coal Ash Proceedings
No abstract provided.
The Intersection Of The Ccr Rule, Superfund, And Irrigation On The Great Plains, Shane D. Mcdonald, Jillian Troyer, Robert Kleinmann, Marty Stange
The Intersection Of The Ccr Rule, Superfund, And Irrigation On The Great Plains, Shane D. Mcdonald, Jillian Troyer, Robert Kleinmann, Marty Stange
World of Coal Ash Proceedings
No abstract provided.
Chemical Compatibility And Hydraulic Performance Of Lightweight Polymer Modified Gcls, Michael S. Donovan, Barbara Gebka, Dennis Wind, Reza Gorakhki
Chemical Compatibility And Hydraulic Performance Of Lightweight Polymer Modified Gcls, Michael S. Donovan, Barbara Gebka, Dennis Wind, Reza Gorakhki
World of Coal Ash Proceedings
No abstract provided.
Using Shear Wave Velocity Measurements To Identify Cemented Ccr, Andrew Fuggle, Longde Jin, Haley Roberts
Using Shear Wave Velocity Measurements To Identify Cemented Ccr, Andrew Fuggle, Longde Jin, Haley Roberts
World of Coal Ash Proceedings
No abstract provided.
Wind Performance Evaluation Of Engineered Turf Final Cover And Exposed Geomembrane, Ming Zhu, Bryan Scholl
Wind Performance Evaluation Of Engineered Turf Final Cover And Exposed Geomembrane, Ming Zhu, Bryan Scholl
World of Coal Ash Proceedings
No abstract provided.