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All Journal Rotasi eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Journal of Physics: Theories and Applications Rang Teknik Journal Jurnal Teori dan Aplikasi Fisika Jurnal Ekonomi dan Bisnis Kontemporer
Agus Supriyanto
Universitas 17 Agustus 1945 Semarang
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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PENGARUH CU TERHADAP REAKSI ANTARMUKA BAJA DAN ALUMINIUM DENGAN PERLAKUAN DIFUSI Karengke, Mathius; Triyono, Triyono; Supriyanto, Agus
ROTASI Vol 16, No 3 (2014): VOLUME 16, NOMOR 3, JULI 2014
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1410.1 KB) | DOI: 10.14710/rotasi.16.3.1-9

Abstract

Nowadays, developing vehicle is made as light as posible with the purpose to reduce energy consumption. For this reason, material that can be used is aluminium that has light weight and non corrosion properties. Aluminum structure will be not strong enough, it still need another material like steel to make it stronger and stiffer. Joining aluminum to steel has problems because of very low solubility, thus it requires other material as its medium in which it accelerates promoter solubility aluminum to steel. In this study, mixture of Fe and Cu powder was used as promoter material or filler in the process of diffusion welding of aluminium and steel.. The  good results diffusion between the steel with aluminum filler hence the need for variation of Fe and Cu. Aluminum and steel welding process with adapting diffusion treatment will produces intermetallic layer. Intermetallic layer was formed from the fussion among two different material, and it made new compound. This research showed some different solubility level of aluminum in steel in every variation of filler composition. The highest solubility ratio of aluminum in steel was 0.4 which reached in the specimens with filler composition of 40% Fe,60% Cu and 60% Fe,40% Cu.
PENGARUH TEMPERATUR TERHADAP SIFAT FISIK MEKANIK PADA SAMBUNGAN DIFUSI LOGAM TAK SEJENIS ANTARA SS400 DENGAN Al6061 Hariyanto, Agus Hadi; Triyono, Triyono; Supriyanto, Agus
ROTASI Vol 17, No 2 (2015): VOLUME 17, NOMOR 2, APRIL 2015
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2181.896 KB) | DOI: 10.14710/rotasi.17.2.57-66

Abstract

Diffusion welding on the disimilar metal between steel SS400 and aluminum Al6061 by using induction furnace, the temperature variation and filler variation. Temperature variations that are used 850⁰C, 875⁰C and 900⁰C. Filler that is used Fe and Cu powders, in variations filler Fe / Cu: 70/30%, 75/25%, 80/20%, on 30 minutes holding time. The results shows there is the presence of intermetallic layers in the temperaturs. Results of Scanning Electron Microscop (SEM), good diffusion process occurs on temperatures 850⁰C and filler variations Fe: 75%, Cu: 25%. It occurs interface bonding steel and aluminum on diffusion area. Interface bonding steel and aluminum will produces intermetalic layer Fe2Al3. The results of good hardness distribution occurs on 900⁰C filler variations Fe: 75%, Cu: 25%. It occurs intermetalic layer formation on diffusion area. Intermetalic layer formation is influenced by heat treatment and diffusion of Fe atoms and Cu atoms. The higher the heat treatment, the harder the Cu atoms. So it will affect the hardness intermetalic layer. By the higher heat treatment, the microstructure of the coating intermetalic will be so close. The more tightly layered arrangement intermatalic blistering effect on shear test. The results of tensile shear testing, high voltage value occurs on 900⁰C filler variations Fe: 75%, Cu: 25%. It is influenced by a continuous heating process, thus causing the Cu atoms will be hard. With high heat, Fe atoms will diffuse to the base metal aluminum and copper atoms will diffuse to the base metal and Al6061 SS400. So that the Fe and Cu atoms will bond with the base metal that affects the mechanical properties.
Co-Authors - Anita, - Agus Hadi Hariyanto Azis Fathoni C Cari Cari, Cari Hardani, H Hendra Hendra Heru Danarbroto Mathius Karengke Muh. Iman Darmawan Nicko Fadhil Muhammad Nurussaniah Nurussaniah Risa Suryana Suharyanto Suharyanto Suhudi, Suhudi Suseno Darsono Triyono Triyono