Results 111 to 120 of about 999,147 (302)
steel research international, EarlyView.This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann +6 more
wiley +1 more source
Influence of forging parameters on tool temperature in hot forging
Computer Methods in Materials Science, 2007 The evaluation of the temperature distribution in the tool surface layer has been strongly required to enable the accurate prediction of the tool life in tool design. The variation in the maximum temperature of a forging tool during hot forging was examined with respect to friction shear factor m, chamfer angle θ, corner radius R and contact time tc ...
Akihiro Minami +4 more
openaire +1 more source
Investigation of Microscopic Nonmetallic Inclusions in Powder Metallurgical High‐Speed Steels
steel research international, EarlyView.Methods for inclusion analysis are evaluated for suitability. Various powder metallurgical steels in different processing states are characterized. SEM/EDS data are further analyzed using analytical and statistical approaches. A thermodynamic method for determining inclusion phase composition is tested.
Manuel Schickbichler +5 more
wiley +1 more source
On possible reasons for defects in large blanks of low-carbon manganese steel at "YURMASH" [PDF]
, 1999 Mechanical properties and microstructures of forged large blanks of low-carbon steel without necessary incoming ultrasound test have been studied. The examination was performed to find out the reasons for product defects.
Fuhrmeister, Thomas +3 more
core +1 more source
steel research international, EarlyView.The effect of chemical inhomogeneity on the microstructure and properties of nanobainitic steel is investigated. A two‐stage isothermal heat treatment that produced a more uniform microstructure is designed. The first‐stage temperature is higher than the MS of depleted bands; conversely, the second‐stage temperature is lower than the first‐stage ...
Bogdan Garbarz +5 more
wiley +1 more source
Materials Research ExpressLarge-tube forgings were formed using nine layers of continuous-casting billet made from 15CrNi3MoV alloy steel via additive forging. The interfacial microstructural evolution under different hot-compression bonding temperatures and strains was ...
Bing Wang +4 more
doaj +1 more source
A Lesson from Past Energy Crises [PDF]
, 2017 open1noAfter dealing with the very recent history of Moore's law in the previous issue of IEEE Industrial Electronics Magazine, I will jump far back into the past for this issue, taking the opportunity given by a present-world economic event.
core +1 more source
Journal of the Royal Anthropological Institute, EarlyView.This article analyses a new wealth tax (the IGF) in Bolivia against the backdrop of the 2019 ousting of former president Evo Morales. In doing so, it engages calls for ‘a return to politics’ in anthropology by proposing the notion of a ‘fiscal grievance politics’ as animating elite opposition to the tax in lowland Santa Cruz department. I show that the
Charles Dolph
wiley +1 more source
Energy and force analysis of Ti-6Al-4V linear friction welds for computational modeling input and validation data [PDF]
, 2014 The linear friction welding (LFW) process is finding increasing use as a manufacturing technology for the production of titanium alloy Ti-6Al-4V aerospace components.
A. Chamanfar +18 more
core +1 more source