Accession Number:

ADA954469

Title:

Metallurgical Examination of Hull Bow Casting, Serial Number 134 for Medium Tank M4, Manufactured by American Steel Foundries

Descriptive Note:

Corporate Author:

WATERTOWN ARSENAL MA

Personal Author(s):

Report Date:

1943-09-20

Pagination or Media Count:

14.0

Abstract:

The object of this study was to determine if the interior ballistic properties of the casting are traceable to unsatisfactory metallurgical characteristics. It was conclude that 1 The poor ballistic properties of the case hull front section are due to a combination of low hardness and poor impact properties resulting from incomplete quench hardening. 2 The incomplete quench hardening is traceable to the use of a steel of insufficient hardenability to adequately quench harden through the section thickness.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE