Abstract The manufacturing of high-speed steel (HSS) components using the laser powder bed fusion (LPBF) process could create an unprecedented combination materials’ mechanical properties and design freedom enabled by to unlock new applications, such as milling heads with functionally optimized cooling channels. However, processing HSS LPBF shows high susceptibility cracking. This contribution ...

The various mechanisms that have been put forward to explain stress-corrosion cracking are briefly summarized. The experimental observations of stress-corrosion cracking in titanium alloys in widely different environmer a are discussed. Evidence from the literature for and against the possibility that hydrogen plays a role in the stress-corrosion cracking of titanium alloys is documented. An ex...

try (HPI), cracking is the process whereby complex organic molecules (e.g.heavy hydrocarbons) are broken down into simpler molecules by the breaking of carbon-carbon bonds in the base material. The rate of cracking and the nature of end products strongly depend on the temperature and presence of any catalysts. Process automation equipment including gas analysis instrumentation contributes essen...

From a nano electronic circuit designer’s point of view the growth of ultrathin film in the ultra high vacuum chamber (UHVC) would imply better stainless steel structure. ZAF method and SEM (scanning Electron Microscopy) technique are used to realize surface nano crystallizafion on an stailness steel sample. The as-welded condition of UHVC is also studied to see if this chamber can prevent weld...

Wet starch cracks when it dries inhomogeneously, while hot glass cracks when it cools non-uniformly. In both cases, differential shrinkage induced by drying/cooling from the surface causes superficial cracks to grow perpendicular to the surface in different patterns. In contrast with these observations of bulk cracking in brittle materials, when a soft and homogeneously swollen polymer gel drie...

Titanium screws have properties that make them ideal for applications that require both a high strength-to-weight ratio and corrosion resistance, such as fastener applications for aviation and aerospace. The fracture behavior of Ti-10Mo-8V-1Fe-3.5Al (TB3) alloy screws during assembly was explored. Besides visual examination, other experimental techniques used for the investigation are as follow...

The present study is dedicated to explore the effect of grain refinement on cracking resistance hot-dip galvanized Zn–Al–Mg coatings steel substrate. In this work, we demonstrate enhancement plastic deformation and by refining microstructure (primary zinc grains) coatings. For purpose, two types namely, fine grained coarse microstructures are investigated utilizing in-situ scanning electron mic...

Welding is an area in which technological developments out match the developments in its science base, which is primarily driven by the phenomenal industrial demand for welded structure. Reliability, Reproducibility and Viability requirements are forcing Technologists to look at weld defects such as distortion, hot cracking, in a systematic and logical approach than on adhoc basis. Distortion i...

Kernels of Nonpareil almond and advanced breeding selections 23.5–16 and 23–122 were evaluated for similarities and differences in commercially important kernel characteristics. These three almond types did not differ in kernel mass, kernel length and width, nor in kernel color coordinates, luminosity and hue. Nonpareil kernels were observed to be significantly (p 6 0.05) thicker than kernels o...

Cracking sounds emitted from human synovial joints have been attributed historically to the sudden collapse of a cavitation bubble formed as articular surfaces are separated. Unfortunately, bubble collapse as the source of joint cracking is inconsistent with many physical phenomena that define the joint cracking phenomenon. Here we present direct evidence from real-time magnetic resonance imagi...