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All Journal Atom Indonesia Journal Jurnal Sains Materi Indonesia Jurnal Teknik Sipil PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Makara Journal of Technology
M. Rifai Muslih
Center For Science And Technology Of Advanced Materials, National Nuclear Energy Agency (BATAN), Puspiptek Area Serpong, Tangerang Selatan 15314, Indonesia
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

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AKUISISI DATA ENCODER ABSOLUT SPEKTROMETER NEUTRON TIGA SUMBU MENGGUNAKAN NI USB-6351 DAN BAHASA PEMROGRAMAN LabVIEW Ari Fiyanti; Sri Wahyu Suciati; M. Refai Muslih
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1027.789 KB) | DOI: 10.21009/0305020502

Abstract

DATA ACQUISITION ABSOLUTE ENCODER A TRIPLE AXIS NEUTRON SPECTROMETER USES NI USB-6351 AND LABVIEW PROGRAMMING LANGUAGE. This encoder is used to monitor the position and rotation of the analyzer crystal scattering arm of TAS. Digital signals from the absolute encoder had been used into the computer via NI USB-6351. Program language LabVIEW is used to acquire process the data ported and deliver the results to the user. Keywords: Absolute Encoder, NI USB-6351, LabVIEW.
Effects of the Preheating Temperature on the Crystal Structure and Texture of Martensitic Stainless Steel Priyanto, Tri Hardi; Muslih, Rifai; Mugirahardjo, Herry; Bharoto, Bharoto; Insani, Andon; Muzzakiy, Muzzakiy
Makara Journal of Technology Vol. 22, No. 2
Publisher : UI Scholars Hub

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Abstract

Theoretically, the preheating temperature refers to the start martensite temperature (Ms), and the martensite transformation can be considered as the conservation of the invariant habit-plane in the lattice structure. The habit-plane is the interface plane between austenite and martensite as measured on a macroscopic scale. From the calculation, Ms = 252 °C. The martensite formation can be affected by temperature or stress treatment. In this experiment, temperature treatment was conducted. The sample was treated at 250 °C ± 10 °C. Before and after the pre-heat treatment, the sample was characterized using the neutron diffraction method. BATAN’s Texture Diffractometer (DN2) with a neutron wavelength of 1.2799Å was used to characterize the sample. Analysis of the crystal structure showed that there are three phases before the preheating. The lattice parameters (a) obtained were as follows: for the -phase, a = 2.8501 ± 0.0004 Å; for the α’-phase, a= b =2.517 ± 0.003 Å, and c= 3.581 ± 0.002 Å; for the -phase, a= 3.5884 ± 0.0004 Å, Rwp = 17.94%, and  = 1.33. After preheating, only the -phase appears with a = 3.5830 ± 0.0005 Å, Rwp = 26.03%, and  = 1.17. The orientation distribution function is modeled by the sample symmetrization model based on triclinic to orthorhombic sample symmetry. It shows that, before being preheated, the -phase has {100}with texture index (F2 ) between 0.701 m.r.d. to 3.650 m.r.d., the α-phase has a texture index between 0.923 m.r.d. to 1.768 m.r.d., and the ’-phase has a texture index between 0.910 m.r.d. to 1.949 m.r.d. After being preheated, the -phase also has {100}with a texture index between 0.846 m.r.d. to 3.706 m.r.d. It can be concluded, that because of the high preheating temperature, a phase change from martensite to austenite occurred that allowed the sample to be welded easily. After preheating, the -phase has the same cubic type orientation {100}, and the texture index is nearly the same as that before preheating, with not martensite present.
Co-Authors A. Insani A. Ramadhani Agus Purwanto Andon Insani Andon Insani Andryansah Andryansah Ari Fiyanti B. Bharoto Bambang Budiono Bambang Sugeng Bharoto Bharoto Bharoto Bharoto Bharoto Bharoto Budiono, Bambang D. Sahidin Winatapura Didin S. Winatapura Dyah Kusumastuti E. Sukirman Eddy Santoso Engkir Sukirman Evi Yulianti Grace Tj. Sulungbudi H. Mugirahardjo Herry Mugirahardjo, Herry Hery Mugirahardjo Hery Mugiraharjo Irfan Hafid Kurdi Kurdi Kurdi, Kurdi Muhammad Rifai Mujamilah Mujamilah Muslinang Moestopo Muzzakiy, Muzzakiy Nosa Septiana Anindita Pusaka, Semerdanta Ridwan Ridwan Ridwan Ridwan Rini Riastuti, Rini Setyo Purwanto Sri Wahyu Suciati Supandi Suminta T. H. Priyanto Taufik, Tiyas Tono Tri Hardi Priyanto Tri Hardi Priyanto Tri Hardi Priyanto Tri Hardi Priyanto Tutik Dwi Wahyuningsih W. Ari Adi Wisnu Ari Adi