X-ray examination as applied to the metallurgy of steel

Abstract

I. T h e possibilities of X-ray examination in steel man'ufscture will be readily apparent. The meanis which it provides for enabling the Metallurgist to see the interior of steel castings and forghgs, and thus to diagnose anld lacalise the diseases to which steel is subject, just in the same manner as the X-rays have been sometimes of such incalculable service to the surgeon, must prove of considerable benefit. 2. The chief difliculty hitherto, and one reaSon why progress in regard to steel has mot been made approaching that in medical science, has been the limite'd thickness of metal which could be penetrated, but considerable strides have been made within the last year or #two in this direction. Thicknesses up to 4 inches are no'w said to have been successfully radiographed.