The influence of various laser powder bed fusion (LPBF) process parameters on the crystallographic textures and mechanical properties a typical Ni-based solid-solution strengthened alloy, Hastelloy-X, was examined. Samples were classified into four groups based type texture: single crystalline-like microstructure with <100>//build direction (BD) (<100>-SCM), <110>//BD (<110...

This work reports on the evolution law of helium bubbles in Hastelloy N alloy on post-irradiation annealing conditions. After helium ion irradiation at room temperature and subsequent annealing at 600 °C (1 h), the transmission electron microscopy (TEM) micrograph indicates the presence of helium bubbles with size of 2 nm in the depth range of 0-300 nm. As for the sample further annealed at 850...

The corrosion sensitivity of several austenitic stainless steels (316L, 316Ti, Sanicro28, Sanicro35) and nickel-based alloys (Hastelloy G30 Hastelloy G35) was determined at elevated temperatures in food grade phosphoric acid (FGPA). materials were submerged a harsh environment >85 wt% FGPA ranging from 80 to 160°C. main aim understand the phenomena occurring such define temperature range for wh...

The application of Directed Energy Deposition (DED) when using new materials or instruments, requires significant empirical testing to define a suitable optimum process operation window. Determining the ideal DED parameters is challenging due complexity deposition being dynamic in nature, with multitude highly influential on resultant melt pool dimensions and subsequent evolution solidification...