Accession Number:

AD0632081

Title:

STUDY OF THE EFFECT OF SOLIDIFICATION STRUCTURES ON THE STRENGTH OF METALS.

Descriptive Note:

Quarterly Progress rept. no. 3,

Corporate Author:

LEHIGH UNIV BETHLEHEM PA INST OF RESEARCH

Personal Author(s):

Report Date:

1966-04-28

Pagination or Media Count:

11.0

Abstract:

Progress on work associated with the mechanical working of Al-Al3Ni eutectic alloy specimens consisted of improvements made to the unidirectional solidification apparatus to produce more perfectly aligned specimens the hydrostatic extrusion of specimens with a colony microstructure by various amounts up to 65 reduction in area in one operation and a preliminary evaluation of the effect of strain hardening on the yield strength of as-cast material. In addition, it has been found that specimens with the colony microstructure could not be drawn at a reduction of 9, although they could be extruded by reduction up to at least 65. Work on the other phase of the research concerned with the mechanical properties of as-controlled magnesium base eutectics included the construction of a new melting chamber to facilitate the production of master heats experimentation with several heats of four different alloys the unidirectional solidification of Mg-Cu and Mg-Ni specimens and preliminary evaluation of the mechanical properties of one of the controlled eutectics viz., Mg-Mg2Cu. Author

Subject Categories:

  • Properties of Metals and Alloys
  • Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE