{"title":"Deposition and post heat treatment of Ni-Al/Ni-20Cr on AISI 4140 using twin wire arc spray method","authors":"A. Purniawan, D. Hapsari, H. Purwaningsih","doi":"10.1063/5.0015688","DOIUrl":"https://doi.org/10.1063/5.0015688","url":null,"abstract":"Boiler generates heat from combustion and transfers to change the water to steam phase. The boiler consists of several components, one of them is superheater tube. High temperature corrosion often attacks the superheater tube material causes material failure. This study aims to deposit Ni-Al and Ni-20Cr on AISI 4140 using twin wire arc spray method as barrier coating. Gas pressure during process was varied of 3 bar, 4 bar, 5 bar, and 6 bar followed by annealing to reduce porosity of the coating product. Characterization to investigate the morphology of the coating surface using SEM shows that the increase pressure causes small surface particles that affects to decrease porosity. Porosity at pressure 3 bar is 15.43% while at pressure 6 bar is 10,35%. In addition, the annealing process has contribution to reduce the porosity till 3% for pressure 6 bar. The hardness of the coating is also influenced by the pressure and the annealing process.","PeriodicalId":131761,"journal":{"name":"1ST INTERNATIONAL SEMINAR ON ADVANCES IN METALLURGY AND MATERIALS (i-SENAMM 2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130545859","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}
M. Farid, D. Susanti, A. Purniawan, M. Ramadhani, Reyhan Efriansyah
{"title":"Level enhancement of sound transmission class of fiber reinforced polyester composite by adding nanocellulose","authors":"M. Farid, D. Susanti, A. Purniawan, M. Ramadhani, Reyhan Efriansyah","doi":"10.1063/5.0015763","DOIUrl":"https://doi.org/10.1063/5.0015763","url":null,"abstract":"Innovation was needed continuously in developing sound absorption composite materials. This study aims to compare the sound transmission class of two types of glass fiber reinforced polyester composite materials. The composite matrix was polyester, mixed with styrene monomer and catalyst methyl ethyl ketone peroxide. While the reinforcement used woven roven glass fiber which has dimensions of 1.1 m x 1.2 m. Nanocellulose was added at 100 gr. The composite material manufacturing process used hand lay up techniques. Material characterizations was carried out by morphological tests using TEM and SEM, FTIR, and semi-anechoic chamber testing. Based on the results of the semi anechoic chamber testing, the addition of nanocellulose to glass fiber reinforced polyester composites has increased the Sound Transmission Class by 2 levels, from clusters 15-20 to clusters of 25-30. This composite material has the potential to develop automotive interior materials including dashboard material.","PeriodicalId":131761,"journal":{"name":"1ST INTERNATIONAL SEMINAR ON ADVANCES IN METALLURGY AND MATERIALS (i-SENAMM 2019)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117040138","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}
{"title":"The effect of spot-welding heat input on mechanical properties of alloy 600 (UNS N06600) plates","authors":"H. Ardy, U. Rumendi, A. Mahfuzh, A. Wibowo","doi":"10.1063/5.0016804","DOIUrl":"https://doi.org/10.1063/5.0016804","url":null,"abstract":"","PeriodicalId":131761,"journal":{"name":"1ST INTERNATIONAL SEMINAR ON ADVANCES IN METALLURGY AND MATERIALS (i-SENAMM 2019)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133348107","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}
{"title":"Photos: 1st International Seminar on Advances in Metallurgy and Materials (i-SENAMM 2019)","authors":"","doi":"10.1063/12.0001316","DOIUrl":"https://doi.org/10.1063/12.0001316","url":null,"abstract":"","PeriodicalId":131761,"journal":{"name":"1ST INTERNATIONAL SEMINAR ON ADVANCES IN METALLURGY AND MATERIALS (i-SENAMM 2019)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121332926","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}