The present work has been carried out to study the sensitization behavior of AISI 304L austenitic stainless steel weld, fabricated using GTAW (gas tungsten arc welding process). This weld was subjected to post weld thermal aging (PWTA) treatments lying in the sensitization range, viz. 700 ?C for 30 minutes, 500 minutes and 1000 minutes for studying the influence of carbide precipitation on thei...

Ti Grade 2 was prepared by cryogenic attritor milling in liquid nitrogen and liquid argon. Two types of milling balls were used—stainless steel balls and heavy tungsten carbide balls. The effect of processing parameters on particle size and morphology, contamination of powder and its microhardness was investigated. Milling in liquid nitrogen was not feasible due to excessive contamination by ni...

This paper describes the tool life prediction model with end milling EN31 tool steel using P30 Tungsten uncoated carbide tool. The data set from the Taguchi method design is taken. For discussion the effects of cutting speed, feed rate and depth of cut on tool life of P30 are considered. This paper suggests a novel technique for the tool wear measurement based on machine vision. Tool images are...

1. Easy to plate: steel, copper and brass. These can be coat* with adherent deposits that will riot fail at the deposit-substrate interface. 2. Special treatment: stainless steels, aluminum, beryllium, magnesium and plastics. These can also be coated with adherent deposits that will not fail at the deposit-substrate interface. 3. Very difsicult: titanium, molybdenum, tungsten, niobium, tantalum...

The cationic surfactant hexadecyltrimethylammonium bromide enhances the fluorescence intensity of both molybdenum and tungsten complexes obtained with Alizarin Red S. This characteristic has been used for a sensitive simultaneous spectrofluorimetric determination of both ions over the range 32-4000 ng/ml and 49-2500 ng/ml for Mo and W, respectively. Good selectivity is achieved applying the wel...

A carbon tool steel plate was coated with an aluminum foil a thickness of 100 μm by explosive welding. This aluminum-coated heat-treated in the temperature range 973−1273 K for up to 3.6 ks atmosphere form Fe-Al alloy layer on surface. The basically composed Fe2Al5, two kinds FeAl (Al-rich and Fe-rich FeAl), Fe3Al containing (Fe3Al(C)) ferrite stabilized diffusion (α-Fe(Al)). FeAl2 also detecte...