This article compares the creep testing behavior of AISI 4340 high-strength steel in as-received and coated conditions. The coating material used was a NiCrBSi self-fluxing alloy. microstructural characterization carried out using optical scanning electron microscopy. tests were conducted at temperature 550 °C with loads 200, 250, 300 MPa. microstructure analysis deposited layer revealed some i...

Abstract This paper presents an effort to model the process parameters involved in turning of alloy steel AISI 4340 workpiece material with Al 2 O 3 and CuO hybrid nanofluids using minimum quantity lubrication (MQL) method. In this paper, effect mixing two nanoparticles (Al CuO) different weight percent environmentally friendly water-based cutting fluid, rotational speed, feed rate has been inv...

The effects of different laser shock peening (LSP) impacts on the three-dimensional displayed distributions of surface and in-depth residual stress at a laser spot of AISI 304 stainless steel were investigated by X-ray diffraction technology with the sin2φ method and MATLAB 2010a software. Microstructural evolution in the top surface subjected to multiple LSP impacts was presented by means of c...