Accession Number:

AD0744151

Title:

Formation of Nitrous Austenite during Diffusion Saturation of Steel KhA,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Belotskii,A. V.
• Permyakov,V. G.
• Samsonyuk,I. M.

Report Date:

1972-03-21

Pagination or Media Count:

9.0

Abstract:

Nitride austenite produced during nitriding of 38KhA steel is heterogeneous in composition. In the nitriding temperature interval studied 750-1050 degrees C, there are two isostructural solid solutions, one of which is a solid solution of carbon, the other being a solid solution of nitrogen in the face-sintered cubic lattice of the matrix. The maximum saturation of austenite by nitrogen is achieved at 900 degrees C. A homogeneous nitride-carbide austenite is formed in the nitriding modes used only in the 1000-1050 degree C interval. The coefficient of diffusion of nitrogen in the austenite of type 38KhA steel was approximately determined. Author

Descriptors:

• (*CASE HARDENING
• *STEEL)
• AUSTENITE
• SOLID SOLUTIONS
• NITRIDES
• USSR

Subject Categories:

• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE