USE OF STEEL 55PP FOR DIESEL LOCOMOTIVE DRIVE GEARS

At the present time drive gears are manufactured from Cr-Ni steels: 12KhN3A, 12Kh2N4A, 20KhN3A, and 20Kh2N4A. The gears are carburized (30 h), which substantially increases their fatigue and contact strength with proper heat treatment. Structurally free cementite in the form of a network in the grain boundaries may be formed when the treatment is not strictly followed, which sharply reduces the fatigue and contact strength. Experimental groups of heavy drive gears were manufactured from the low-hardenability steel adopted in the automobile industry -- 55PP. This work concerns attempts to use this steel for drive gears of electric and diesel locomotives, with use of bulk-surface hardening.

• Corporate Authors:

  Consultants Bureau

  227 West 17th Street
  New York, NY  United States  10011
• Authors:
  • Gladyrevskaya, S A
  • Dontsova, L I
  • Salina, A D
  • Kucheryavaya, T I
• Publication Date: 1977-1

Media Info

• Features: References;
• Pagination: p. 42-45
• Serial:
  • Metal Science and Heat Treatment
  • Volume: 19
  • Issue Number: 1-2
  • Publisher: Consultants Bureau

Subject/Index Terms

• TRT Terms: Alloy steel; Analysis; Components; Fatigue strength; Gears; Locomotives; Materials; Metal heating; Metallurgy; Steel; Stresses; Vehicle drive systems
• Uncontrolled Terms: Contact stress; Heat treatment
• Old TRIS Terms: Drive gears; Locomotive component analysis; Steel metallurgy
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00169992
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jan 30 1978 12:00AM