Accession Number:

ADA244344

Title:

Materials Analysis of a Fatigue Testing Mandrel

Descriptive Note:

Final rept.,

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS

Personal Author(s):

Report Date:

1991-11-01

Pagination or Media Count:

37.0

Abstract:

A materials characterization and failure analysis was performed on a fatigue testing mandrel that ailed abruptly in service after a total of only 5061 cycles. The mandrel was reportedly composed of marage 250 grade steel, and the raw material was specified to be delivered in the solution-annealed condition. Subsequent processing was to include rough machining to the approximate mandrel dimensions, an aging treatment at 900 deg F for four hours, and finish machining.

Subject Categories:

  • Physical Chemistry
  • Metallurgy and Metallography
  • Machinery and Tools
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE