In this paper, the copper-based nanocomposites with TiO2 nanoparticles were synthesized by self-propagating high-temperature synthesis (SHS) process. The effect of different amounts excess copper, in comparison stoichiometric ratio (CuO:Ti ratios 1:1, 2:1, and 3:1), on phase formation achieved samples was studied. A thermodynamical study showed that increasing copper powder reduces adiabatic te...

Al-5Ti-C master alloy was prepared and used to modify hypereutectic Al-20%Si alloy. The microstructure evolution and mechanical properties of hypereutectic Al-20%Si alloy with Al-5Ti-C master alloy additions (0, 0.4, 0.6, 1.0, 1.6 and 2.0 wt%) were investigated. The results show that, Al-5Ti-C master alloy (0.6 wt%, 10 min) can significantly refine both eutectic and primary Si of hypereutectic ...

This article is devoted to the study of initial phase obtaining alloy 1420, namely, a primary material with desired chemical composition. The effect alloying magnesium, zirconium and lithium on strength properties material. In work, following materials were used obtain cast aluminum Al-Mg-Zr-Li system: technical purity A0 or A5, magnesium Mg95, LE-1, E100, aluminum-zirconium ligature AlZr5, alu...

The demand for construction timber is continuously increasing, due to its favourable characteristics. However, the adequate protection of wood key successful use, as it flammable and susceptible biodegradation. Given that thermal modification enhances durability wood, mineralisation with CaCO3 considerably improves fire properties, worth considering combined effects two methods.European beech (...

Abstract The aluminum alloy 2618A is applied for engine components such as radial compressor wheels which operate long time at elevated temperatures. This results in coarsening of the hardening precipitates and degradation mechanical properties during long-term operation, not taken into account current lifetime prediction models due to lack quantitative microstructural data. To address this iss...

Pengelasan adalah proses penyambungan logam atau non-logam yang dilakukan dengan memanaskan material akan disambung hingga temperatur las, tanpa menggunakan tekanan dan pengisi. Salah satu teknik pengelasan SMAW (Shield Metal Arc Welding) GTAW (Gas Tungsen Welding). Dengan las tersebut kita dapat menyambung seperti: Aluminium, Tembaga, Carbon Steel, Stainless Steel. Penelitian ini untuk mengeta...

This research studies the effect of flow rate on pouring molten metal into mould so that can be controlled. Furthermore, this preheating temperature inside cavity maintained, especially for narrow holes. The process starts with making engine cylinder head pattern and gating system using a three-dimensional printer polylactic acid resin. are combined coated layer cement plaster, silica sand kaol...

This paper explores the use of the Vogel Approximation Method to determine the best suitable Fluence energy that can produce a mild steel weld of acceptable Ultimate Tensile Strength (UTS). Although this model is most often utilised for optimizing facility location problems, in this study it is uniquely adapted to accurately determine and predict acceptable mild steel fluence energy weld parame...