Transition morphology during HCP precipitation from beta-isomorphous alloys

TY - JOUR

T1 - Transition morphology during HCP precipitation from beta-isomorphous alloys

AU - Carpenter, R. W.

AU - Liu, C. T.

N1 - Funding Information: In this letter we wish to point out some experimental results from the Nb-Hf alloy system, which is also very similar to the Ti-V system (4,5). The rYb--Hf phase diagram is B-isomorphous tyoe. ~\]~e< ~ precipitation morphology was investigated by TEM in alloys containing 38 and 54 at. percent ilf. When these alloys were quenched from the ~ field and aged at relatively high temperatures i~ the ~+~ field the resulting a precipitate morphology is rod-type, virtually identical to that shown is K&BI, fig. 6a. If, however, aging occurred at lower temperatures (600 to 800°C) a different morphology was found: the precipitate varied from plate type to ellipsoidal, with major axis parallel to a (i00) direction. This morphology was very similar to that shown in *Research sponsored by the U.S. Atomic Energy Commission under contract with the Union Carbide Corporation.

PY - 1971/4

Y1 - 1971/4

UR - http://www.scopus.com/inward/record.url?scp=49649155777&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=49649155777&partnerID=8YFLogxK

U2 - 10.1016/0036-9748(71)90189-X

DO - 10.1016/0036-9748(71)90189-X

M3 - Article

AN - SCOPUS:49649155777

SN - 0036-9748

VL - 5

SP - 255

EP - 257

JO - Scripta Metallurgica

JF - Scripta Metallurgica

IS - 4

ER -