Metallurgical Examination of German Aircraft Armor

Abstract

The purpose of this investigation was to determine the metallurgical characteristics of a sample of armor plate taken from a captured German airplane, model JU88. The material is homogeneous plate containing: C, .415; Mn, .58; P, .010; S, .026; Si, .30; Ni, 2.48; Cr, 2.41; Mo, .64; V, nil; W, nil. The Brinell hardness of the face was 555 and the back, 555. Marco and microscopic examination indicated that the material was rather uniform throughout. The plate was rolled from a fairly clean heat of steel. The ballistic limit of the plate was 2356 f/s, Cal. .30 A.P. but was too brittle to qualify under the existing specifications.

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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 1941
Accession Number
ADA954380

Entities

People

  • E. L. Reed

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Airplanes
  • Armor
  • Armor Plate
  • Chemical Analysis
  • Chemical Composition
  • Dendritic Structure
  • Diameters
  • Grain Boundaries
  • Hardness
  • Inclusions
  • Materials
  • New York
  • Right Angles
  • Shock Tests
  • United Kingdom

Readers

  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design
  • ballistics.