-
Title
-
Development of Improved Cutting Tool Materials
-
Date
-
1963
-
Abstract
-
Experimental work has involved the preparation and initial evaluation of a wide range of cutting tool materials produced by a variety of techniques. An M2 high-speed steel base was enriched in vanadium, then forged into bar stock. Material containing up to 18wt% vanadium was fabricable, but none of the vanadium-enriched compositions were heat treatable without subsequent enrichment in carbon by solid-state surface carborization. This procedure should result in a tool material having a tough core with a hard, high-carbon surface layer. The casting of an M1 high-speed steel into an oscillating mold produced a much finer distribution of carbides than similar material cast into stationary mold. Initial atomization experiments using an M2 high-speed steel produced partially spheroidized particles generally finer than 80 mesh. No massive carbides were observed in the microstructures. Studies of liquid-phase sintered carbides included 2 general work areas. The first, utilizing iron-, nickel-, or cobalt-containing matrix phases, was concerned with the development of fine spheroidized carbides, principally VC. The second work area involved wettability and sintering studies of various carbides with high-melting matrix phases.
-
Date Issued
-
1963-01
-
Extent
-
27
-
Corporate Author
-
Armour Research Foundation
-
Identifier
-
AD0294621
-
Corporate Report Number
-
ARF-B6000-3
-
Report Number
-
ASD TDR 7-714 Volume 1
-
AD Number
-
AD-294 621
-
Contract
-
AF 33(657)8786
-
Distribution Conflict
-
Yes
-
Index In
-
U.S. Government Research Reports, Vol. 38, No. 8, p. 91
-
Index Price
-
$3.60
-
Distribution Classification
-
2
-
DTIC Record Exists
-
No
-
Report Availability
-
Not available via Contrails
-
Type
-
report
-
Creator
-
Holtz, F. C.