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Use of Cement Copper in an Iron-copper-carbon Powder Metallurgy Alloy.
Crosby-RL; Desy-DH; Doerr-RM
NTIS: PB 190 480 :14 pages
The Bureau of Mines investigated the substitution of cement copper powder for commercial copper powder in an fe-7 percent cu-1 percent c powder metallurgy alloy. Copper powders from six different commercial cementation operations were separately upgraded by screening and hydrogen reduction. They were then mixed with commercial iron and graphite powders to form the fe-7 percent cu-1 percent c alloy. Various chemical and physical properties were determined on the upgraded cement copper and the alloy powders. Mechanical, physical, and chemical properties were determined on green and sintered specimens made from the alloy powders. Mean tensile and bending strength of sintered specimens were significantly lower than the means from specimens made from commercial metal powders. The lower strengths are apparently related to poor sinterability.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 190 480
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division