Abstract A hot isostatic pressing rejuvenation heat treatment is applied to a CMSX-4 type SX superalloy after it has been subjected low-cycle fatigue test rupture. The evolution of microstructural defects, such as pores and cracks which are present fatigue, tracked in 3D by X-ray tomography before rejuvenation. From the rejuvenated specimen, series metallographic cross sections were prepared in...

Duplex stainless steels combine the positive properties of its two phases, austenite and ferrite. Due to good corrosion resistance, high tensile strength, ductility, it has multiple applications. But laser beam welding duplex changes balanced phase distribution in favor This results a higher vulnerability lower ductility. Herein, different powder combinations consisting nickel for coating layer...

The present work is devoted to the study of influence parameters structural anisotropy rolled products on low-temperature impact strength alloyed steels. A quantitative metallographic analysis microstructure steel samples obtained after testing for toughness was carried out. It established that main reason decrease in a highly developed segregation band enriched with carbon films formed at stag...

Microstructural and cavitation erosion testing was carried out on Cu-12.8Al-4.1Ni (wt. %) shape memory alloy (SMA) samples produced by continuous casting followed heat treatment consisting of solution annealing at 885 °C for 60 min and, later, water quenching. Cavitation resistance applied using a standard ultrasonic vibratory set up with stationary specimen. Surface changes during the were mon...

Abstract The Drassburg Bronze Age hoard find (approx. 25 kg) also comprises some sickles and sickle fragments. One of these fragments was provided for metallographic examinations. A XRF analysis revealed 94.5 wt.% Cu, 4.31 Sn, 0.61 Pb, 0.12 S in the alloy. It can therefore be attributed to tin bronzes. material has a uniform dendritic microstructure. Higher concentrations S, Pb were measured in...