Accession Number:

AD0601233

Title:

Low-Temperature Impact-Strength of Iron-Powder Bars.

Descriptive Note:

Technical rept.,

Corporate Author:

WATERVLIET ARSENAL NY

Personal Author(s):

• Miller, James J.
• Gould, E. Noah

Report Date:

1963-12-01

Pagination or Media Count:

17.0

Abstract:

Bars were made of three types of iron powder atomized, electrolytic and hydrogen-reduced mill scale, at two different sintering temperatures and several different compacting pressures. Charpy impact-strength was then measured on each variety of bar at -40 degrees the values obtained ranged from 38 to 5 ft-lb. The impact-strength of both the atomized and the electrolytic iron-powder but not the hydrogenreduced mill scale increased as compacting pressure and sintering temperature increased. However, no value of impact-strength achieved is high enough for cannon components. Since this investigation does not show the characteristics of all metal powders, additional investigations should be made of heat-treated alloy-steel powders, more like gun steels. Such investigations are expected to show higher strength in both tensile and impact tests. Author

Descriptors:

• IRON
• POWDER METALLURGY
• SINTERING
• MANUFACTURING
• DENSITY
• ATOMIZATION
• ELECTROLYSIS
• REDUCTION
• POWDER METALS
• PRESSURE
• MECHANICAL PROPERTIES
• IRON ALLOYS
• SINTERING FURNACES
• TOUGHNESS
• EXPERIMENTAL DATA
• CRYOGENICS
• RODS
• GUN COMPONENTS
• MATERIAL FORMING

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE