The Effect of Heat Treatment on the Structure and Properties of Standard and Modified Vasco X-2 Steel.

Abstract

Vasco X-2 CVM is a patented high hot hardness carburizing grade gear steel. It is currently being considered for application in the next generation of Army helicopters because of its higher resistance to scuffing. Very limited metallurgical data exist for this alloy in the open literature. This paper compares the heat treatment responses of a 0.24 (standard) and 0.15 (modified) carbon Vasco X-2 steel. The effect of a wide range of austenitizing and tempering temperatures on the structure and mechanical properties is presented. The major result of the investigation indicates that by judicious choice of austenitizing and tempering heat treatments, optimum microstructure and mechanical properties can be developed for the modified Vasco X-2 steel. Rolling contact fatigue, four-square gear testing, and single tooth bending tests have been initiated to evaluate its suitability as a high performance gear matherial. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA044949

Entities

People

  • Eric B. Kula
  • Paul J. Fopiano
  • Stephen A. Oliver

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Alloys
  • Classification
  • Diffraction
  • Engineering
  • Hardness
  • Heat Treatment
  • Materials
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Procurement
  • Standards
  • Tensile Properties
  • Tensile Strength
  • United States
  • X Rays

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).