Shape Memory Alloys (SMA) is a material that can return to its original shape after undergoing mechanical deformation. The most commonly SMA used the Ni-Ti alloy. However, it high cost. So necessary have alternative materials, for instance Cu-Zn-Al. Several studies related Cu-Zn-Al poor properties. there further research required in order determine heat treatment process of Alloys. In this stud...

By applying the orthogonal test, T6 heat treatment test of casting AlSi10MgMn alloy was carried out. Hardness, tensile strength, and elongation were selected as indicators for evaluating toughness alloy. Grey relational analysis used to comprehensively evaluate Based on multiple linear regression, prediction models hardness, elongation, grey correlation established. Through planning solving, op...

Abstract High-temperature coal ash/flue gas corrosion behaviours of three nickel–iron based superalloys for boiler tubes with different Mo and W contents (1.8% + 1.2% S 1 alloy, 0.8% 0.2% 2 0.5% 2.2% 3 alloy) at 650 700°C were studied. The microstructure, phase compositions, morphologies together element distribution products investigated a metallographic microscope, scanning electron microscop...

Abstract Because of the high entropy effect, a simple solid solution structure can be obtained in alloys (HEAs), giving HEAs greater overall properties than conventional alloys. Cladding layers FeCoCrNiMnTi x were prepared on Q355 steel by laser cladding technology. X-ray diffraction (XRD), metallographic microscope (OM), and scanning electron (SEM) used to examine microstructure layers. The mi...

Abstract The aim of this work is to develop an automated procedure based on machine learning capabilities for the identification pearlite islands within two-phase pearlitic–ferritic steel. input parameters custom implementation a braided neural network are provided as data set scanning electron microscopy images metallographic specimens. procedures related processing and optimization affecting ...

In view of the local cracking and leakage water-wall pipe Subcritical Boiler in a thermal power plant, mechanism water wall was studied by means macroscopic analysis, chemical composition metallographic structure, Brinell hardness test, tensile test at room temperature scanning electron microscopy. The results show that there is no misuse materials or unqualified cracked leaked pipe. There are ...

Usually, before being used in biomedical applications, a biomaterials’ bioactivity is tested by vitro methods that simulate similar conditions to those found the human body. In this work, we report on synthesis of zinc-doped hydroxyapatite–chitosan (ZnHApC) composite coatings vacuum deposition method. The surface microstructure and chemical molecular modification after soaking DMEM (Dulbecco’s ...

The article considers the study of composition non-metallic inclusions and microstructure electric arc coating using flux-cored wire Fe – C Si Mn Cr Ni Mo system. Formation was carried out ASAW-1250 automatic welding machine by investigated wire. In order to influence level contamination deposited metal with oxide inclusions, aluminum gas purification dust introduced into (instead amorphous car...