Color metallography is a useful method for characterizing microstructures of steels with multiple phases. In this paper, application of three different color etching techniques for a bainitic-martensitic steel is reported. Comparisons between the results showed that 10% Na2S2O5 aqueous solution was the best etchant for distinguishing martensite, bainite and ferr...

Abstract In order to obtain a high-strength Al-Mg-Si aluminum alloy with tensile strength of more than 400MPa, trace amount Zr is added the 6082 an Al-1.0Mg-1.05Si-0.55Mn-0.15Cr-0.045Zr alloy. The mechanical properties and microstructure extruded were studied by performance test, metallography, scanning electron microscope (SEM), transmission (TEM), backscatter diffraction (EBSD) observation en...

Сrystal structure and mechanism of crystallization of Fe-Ni alloys were studied by methods of X-ray diffraction and metallography. It has been found that macro- and microstructure of austenitic alloy was essentially heterogeneous at the contact and free surfaces and in the volume of a ribbon. The indentified peculiarities of the austenitic phase in different areas of the ribbon are attributed t...

Clinching is the manufacturing process of joining two or more metal sheets under high plastic deformation by form and force closure without thermal support auxiliary parts. Clinch connections are applicable to difficult-to-join hybrid material combinations, such as steel aluminum. Therefore, this technology interesting for application AISI 304 components, widely used a highly formable sheet mat...