Accession Number:

ADA025203

Title:

Initial Studies of In-Sem Fracture Using a Tensile Stage.

Descriptive Note:

Final rept.,

Corporate Author:

CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN ILL

Personal Author(s):

Report Date:

1976-05-01

Pagination or Media Count:

34.0

Abstract:

Using a uniquely designed base, tensile tests were performed on A-36 and HY-130 steel plate specimens and a defective AX-110 weld deposit under vacuum inside a scanning electron microscope. Although the base is also designed to handle compression and bending tests, this initial investigation was confined to tensile loading. Results to date show that considerable plastic deformation occurs within the grains of the A-36 and HY-130 specimens prior to failure. Stringers of inclusions were found to serve as principal sites for crack initiation and void formation. The tensile stage was found to be successful in monitoring crack growth in specimens. Author

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE