HARDNESS AND MICROSTRUCTURE OF PARTIALLY AUSTENITIZED 43XX STEEL

A study has been made of microstructures of several partially austenitized 43xx steels. By quenching from temperatures below those at which complete austenitization would occur, microstructures of martensite with ferrite and/ or cementite were obtained. Microstructural analysis enabled the phase boundaries of the pertinent section of the phase diagram to be determined. Hardness changes in the as-quenched structures were correlated with the phase diagram. The major factor controlling the as-quenched hardness is the volume fraction and carbon content of the martensite in the structure.

• Corporate Authors:

  Army Materials and Mechanics Research Center

  Watertown, MA  United States  02172
• Authors:
  • Chiao, W F
  • Kula, E
• Publication Date: 1971-12

Media Info

• Features: References;
• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: High strength steel; Low alloy steel; Metal heating; Metallography
• Uncontrolled Terms: Heat treatment
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00035601
• Record Type: Publication
• Source Agency: Ship Structure Committee
• Report/Paper Numbers: AMMRC TR 71-5 8Tech Rp
• Files: TRIS
• Created Date: Oct 27 1972 12:00AM