... colleagues Christopher Rickard for metallographic results, Paul Cote for elevated temperature strength measurements of electroplated chromium, and Stephen Smith for scanning electron microscopy. Underwood , J. H. , Witherell , M. D. , Sopok , S. , McNeil , J. C. , Mulligan , C. P...

...Robert H. Carter Designers of advanced gun systems have been tasked with increasing barrel life in the face of the extreme erosion and wear of the interior ballistics environment. The addition of refractory metal coatings, such as chromium or tantalum, have greatly boosted service life, but even...

... for replacement of the current electroplated high-contractile chromium coating. Two such coating systems are cylindrical magnetron sputtered (CMS) Cr coatings and CMS Ta ∕ Cr bilayer coatings. Cylindrical magnetron sputtering is a high-rate vacuum deposition process that has been applied to 120 mm tubes...

... have described cannon firing damage and proposed new thermo-mechanical models to gain understanding of its causes, with emphasis on the severe damage that occurs in the steel beneath the chromium plating used to protect the cannon bore. Recent refinements in the models will be used here to characterize...

...Ju¨rg Ho¨lzle A experimental 120 mm L55 tank gun barrel showed heavy loss of the chromium plating at the muzzle region. Experimental and theoretical studies led to the conclusion that high frequency oscillations, caused by the traveling pressure wave, are responsible for this effect. This so-called...