Metallurgical Examination of a Cast Turret Manufactured by the American Steel Foundries

Abstract

Metallurgical examination of two specimens representing the thinnest and thickest sections (1 in. to 1-1/4 in. and 3 in. to 3-1/2 in. respectively) of an M4 Cast Turret, No. B171, produced by the American Steel Foundries, indicated that the properties of the two sections were a function of the ease with which they could be hardened by quenching. The thin section has been fully quenched out and has good impact strength at both room temperature and at -40 F. The thick section has not been completely hardened through the section, as evidenced by the decreased impact strength at the center of the section when tested at -40F. These results were corroborated by fracture tests. The impact properties of the heavy section are, however, deemed adequate to insure ductile behavior upon ballistic impact. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 28, 1945
Accession Number
ADA954932

Entities

People

  • B. Phelps

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • Charpy Impact Tests
  • Chemical Analysis
  • Hardening
  • Hardness
  • Impact Strength
  • Impact Tests
  • Mechanical Properties
  • Microstructure
  • Munitions
  • Physical Properties
  • Quenching

Readers

  • Mathematics or Statistics
  • Metallurgy