As a supplemental process of heat treatment, deep cryogenic treatment (DCT) is believed to have favorable effects on the mechanical properties steels. In this study, three different sequences DCT and tempering, including QCTT (Q: quenching, C: DCT, T: tempering), QTC, QTCT, were investigated discover an effective method improve impact toughness fatigue life typical ultrahigh strength steel simu...

Brake lining atau kampas rem sangat penting perannya pada pesawat Cessna Grand Caravan 208B dalam mengontrol memberhentikan laju dari wheel pesawat. Dalam pengoperasian-nya brake selalu mengalami gesekan secara terus-menurus dengan disc sehingga menyebabkan material keausan, kekerasan berkurang, dan naiknya temperature drastis. Guna meningkatkan performa lining, maka ini akan diberi heat treatm...

The intermittent drying characteristics of an Iranian popular paddy rice variety were experimentally investigated to determine the drying kinetics and obtain the effective moisture diffusivity. A lab-scale fluidized bed dryer was designed and constructed to enable obtaining the required results while controlling critical drying parameters. The effects of drying temperature and tempering per...

Intermittent drying is a satisfactory technique for drying of heat sensitive grains especially rough rice. This method consists of two separate stages applied intermittently: drying and tempering. In this work, intermittent drying of rough rice is investigated both theoretically and experimentally. In order to characterize this process; a multi-scale model consisting of macroscopic and microsco...

AISI H13 steel samples were additively manufactured using a laser powder bed fusion (LPBF) system. The effect of annealing tem-perature, quenching & tempering, and nitriding determined. microstructure properties the investigated optical microscopy, scanning electron backscattered diffraction, probe micro-analysis, X-ray roughness measurement, hardness tester. results show that as-built samp...

The effects of the neodymium content on creep properties and microstructures 9Cr-3Co-3W-Nd-B steel were investigated. Neodymium had a mild effect rupture strength at contents up to 0.056 mass%. This suggested that compounds solid-dissolved minimal in uniformly creep-deformed parts after normalizing tempering heat treatment. On other hand, reduction area was improved by addition neodymium. Creep...

Crusher Tip merupakan salah satu komponen dalam mesin shredder yang memiliki fungsi utama sebagai penghancur batuan ditambang bahan baku semen. Fungsi tersebut mengharuskan ketangguhan dan ketahanan aus tinggi. Beberapa cara telah dilakukan mulai dari merekondisi dengan pengelasan pengembangan pembuatan material cocok. Pemilihan AISI 4140 hasil kajian penelitian sebelumnya. Namun nilai kekerasa...

Cladding or cladding used for nuclear fuel elements requires special requirements such as good mechanical properties, radiation resistance, corrosion adequate physical and chemical low thermal neutron absorption. Materials that are widely structural materials reactors beryllium, magnesium, aluminum, zirconium their alloys. Alloy 9Cr-316-1Mo Nuclear material. material has been made. The was chos...