Surface fatigue and failure characteristics of hot forged powder metal AISI 4620, AISI 4640, and machined AISI 4340 steel spur gears
By: Dennis P. Townsend.
Contributors: United States. National Aeronautics and Space Administration.
Series: NASA technical memorandum -- 87330.
Publisher: NASA; For sale by the National Technical Information Service
Published: 1986
Place of publication: [Washington, DC]; [Springfield, Va
Language: eng
Format: Microform
Subjects: Mechanical engineering.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1986] 1 microfiche.