Accession Number:

AD0739906

Title:

Hardness and Microstructure of Partially Austenitized 43XX Steel.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS

Personal Author(s):

Report Date:

1971-12-01

Pagination or Media Count:

22.0

Abstract:

A study was 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 andor 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. Author

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE