the microstructure of hp stainless steel in aged and aged + solution annealed conditions and solutionized alloy 800 was characterized by optical microscopy, scanning electron microscopy (sem), and transmission electron microscopy (tem) equipped by eds. all phases present in the above condition were described. the effects of solution annealing heat treatment temperature on the microstructure, te...

FeCrAl alloys were prepared with TiC additions to act as hydrogen traps and improve resistance to hydrogen cracking. Weldability results showed that alloys with up to 20 wt% Al and 11 wt% Cr could be prepared crack-free with relatively small TiC additions of ~ 4 wt%. Thermogravimetric analysis of Fe-10Al-5Cr corrosion coupons with and without TiC has shown that the corrosion resistance is not s...

The Hastelloy X superalloy is a widely used solid-solution Ni-based sheet alloy for gas turbines, aero-engine combustion chambers, and other hot-end components. To investigate the effect of microstructure, especially grain size, on its weldability, bars are homogenized, cold-rolled to thin sheets, recrystallized under different conditions obtain equiaxed microstructures with average sizes ~5 ?m...

This study investigated the effect of initial grain size on laser beam weldability CoCrFeMnNi high-entropy alloys (HEAs). Cold-rolled, annealed, and cast HEAs with different sizes exhibited clear differences in weldability. The cold-rolled, 1.5, 8.1, 1.1 mm, respectively. weld metal (WM) cold-rolled/annealed was coarser than that base (BM), whereas WM HEA finer BM. Shrinkage voids were present ...