The Tensile Fracture Behaviour of the Weld Metal of BIS 812 EMA and Q1N Naval Construction Steels,

Abstract

The tensile properties and tensile fracture behaviour of BIS 812 EMA and Q1N naval constructional steel weldments have been studied over a wide range of test temperatures utilizing plain and notched tensile specimens. Under certain conditions "star" fracture is the preferred fracture mode, rather than the usually observed cup-and-cone type fracture. The propensity for "star" fracture increases with decreasing temperature and the transition temperature for cup and cone to "star" fracture is reduced by notching. This paper describes the fracture surface features resulting from tensile tests and the conditions under which they occur in these materials. jg p.2

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1995
Accession Number
ADA299474

Entities

People

  • D. S. Saunders
  • I. A. Burch

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Construction
  • Electron Microscopes
  • Electron Microscopy
  • Failure Mode And Effect Analysis
  • Fracture (Mechanics)
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Microscopy
  • Scanning Electron Microscopy
  • Tensile Properties
  • Tensile Strength
  • Weld Metal
  • Welds
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Astronomy/Astrophysics
  • Materials Science and Engineering.
  • Metallurgy