NEW SOVIET HEAT-RESISTANT MAGNESIUM ALLOY

Abstract

The article deals with the melting, ingot casting, extrusion, welding, and corrosion resistance of the MA10 Mg-base alloy, which contains Al, Cd, Ag, and Mn. According to the authors, melting, ingot casting, and extrusion procedures for this alloy do not differ markedly from those used for other Mg alloys. Al and Mn are added during melting, while Cd and Ag are added in the mixer. Ingots are cast by a semicontinuous process and then conditioned by machining. Round billets are 345 mm in diameter and 600-1100 mm long; flat billets are 160 x 540 x 700 mm. Good surface quality and uniform fine-grained structure are obtained at extrusion temperatures of 350-400 C and extrusion rates not exceeding 0.3 m/min for bars, plates, and panels, and 0.5 m/min for tubes. At higher extrusion rates transverse tears form. The structure of the MA10 alloy consists of a complex Mg-Al-Mn-Cd-Ag solid solution and a complex intermetallic compound which probably serves as a strengthening phase. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1961
Accession Number
AD0254406

Entities

Organizations

  • Library of Congress

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Alloys
  • Corrosion
  • Corrosion Resistance
  • Diameters
  • Extrusion
  • Fabrication
  • Intermetallic Compounds
  • Machining
  • Magnesium
  • Magnesium Alloys
  • Manufacturing
  • Resistance
  • Solid Solutions
  • Transverse

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.