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Precipitation Strengthening of PB-cd-sb Alloys.

Authors
Tilman-MM
Source
NTIS: PB 196 607 :10 pages
Link
NIOSHTIC No.
10009196
Abstract
The Bureau of Mines investigated the precipitation strengthening of lead-base alloys containing 0.5 Through 4 weight-percent combined cd plus sb. The cd and sb were alloyed in a 1-to-1 atomic ratio which maintained compositions along the quasi-binary section pb-cdsb. Tensile properties, creep rates, and stress-rupture values were obtained on alloys in the aged condition. The highest tensile strength was observed in an alloy of pb-3 cdsb. After aging for 6 months at 90 deg. +- 3 Deg. F, this alloy had a mean tensile strength of 8,950 psi with 15-percent elongation. An aged alloy of pb-1 cdsb exhibited a steady state creep rate of 1.2 X 10-3 percent per day at a stress of 500 psi and a temperature of 90 deg. +- 3 Deg. F. Times to rupture at stresses up to 4,000 psi and at a temperature of 90 deg. +- 3 Deg. F were obtained for some compositions.
Publication Date
19700101
Document Type
IH; Report of Investigations
Fiscal Year
1970
NTIS Accession No.
PB-196607
NTIS Price
A02
Identifying No.
RI 7453
NIOSH Division
RORC;
Source Name
NTIS: PB 196 607
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