Reliable and resilient constructions are basic for ensuring the safety of various structures. The superalloys used as constructive materials due to their superb mechanical properties endurance. However, even these can have certain areas where stress concentration is higher than expected, such drilling holes, which common in structures that need additional enhancement. Surface laser modification...

Nimonic 75 and Inconel 600 alloys are the Nickel-based superalloys which used in manufacturing gas turbine components. In current research, a superalloy Ni-based sheet were used, joint by resistant spot welded (RSW) machine at currents of 2, 4, 6 kA, pressure 5 7 bar, times 0.6, 0.9 1.2. Non- destructive inception methods light scanning electron method (SEM) optic microscope (LOM) to evaluate j...

Introduction/purpose: The paper presents a solution for overcoming possible problem - breach of safety measures when operating the BVP M80A Infantry Combat Vehicle on training ground during tactical exercises and shooting at night. crux is that officer in charge exercise not position to observe which direction gunner-operator aims because no device has been installed M-80A signal this. Methods:...

The high temperature oxidation behaviour of Nimonic-115 industrial alloy has been investigated in presence of  NaNO3, Na2CO3 and Na2O2 at 850oC in flowing air. The oxidation kinetics and effect of salt deposition for the period of 48 h were studied. The scale morphologies were determined on the basis of X-ray diffraction anal...