A STUDY OF THE EFFECT OF SOLIDIFICATION IMPERFECTIONS ON THE TENSILE PROPERTIES OF CAST STEEL.

Abstract

The need for a correlation between mechanical properties and imperfection size as determined by radiographic standards has greatly increased. This investigation was initiated to establish such a correlation with cast 4140 steel heat treated to a strength level of 180,000 to 200,000 psi. Solidification imperfections of both gas and shrinkagetype were studied. A least squares statistical regression analysis has shown that tensile strength decreases linearly as imperfection size increases. No significant difference between the two types of imperfections in reducing the tensile strength was noted. From the results of this investigation a practical method can be devised for establishing radiographic standards for castings. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1964
Accession Number
AD0609451

Entities

People

  • Bruce L. Bramfitt
  • Leonard Liuzzi

Tags

DTIC Thesaurus Topics

  • Computing-Related Activities
  • Data Science
  • Heat Energy
  • Information Science
  • Interdisciplinary Science
  • Mathematical Analysis
  • Mathematics
  • Mechanical Properties
  • Physical Properties
  • Regression Analysis
  • Solidification
  • Standards
  • Statistical Analysis
  • Tensile Properties
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Regression Analysis.
  • Reinforced Composite Materials