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Comparisons of modified Vasco X-2 and AISI 9310 gear steels

Author
Townsend, D. P.
Published
Nov 1, 1980.
Physical Description
1 electronic document
Additional Creators
Zaretsky, E. V.
Online Version

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Summary
Endurance tests were conducted with four groups of spur gears manufactured from three heats of consumable electrode vacuum melted (CVM) modified Vasco X-2. Endurance tests were also conducted with gears manufactured from CVM AISI 9310. Bench type rolling element fatigue tests were conducted with both materials. Hardness measurements were made to 811 K. There was no statistically significant life difference between the two materials. Life differences between the different heats of modified Vasco X-2 can be attributed to heat treat variation and resultant hardness. Carburization of gear flanks only can eliminate tooth fracture as a primary failure mode for modified Vasco X-2. However, a tooth surface fatigue spall can act as a nucleus of a tooth fracture failure for the modified Vasco X-2.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19810005810.
Accession ID: 81N14322.
NASA-TP-1731.
E-070.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15720513