STUDIES OF THE QUATERNARY ALLOY Ni-Cr-Ti-Al

Journal Article · Sun Dec 01 04:00:00 EST 1957 · Izvest. Akad. Nauk S.S.S.R. Otdel. Tekh. Nauk

OSTI ID:4329559

Pryashkina, L I; Ryabtsev, L A

A schematic phase diagram is shown for the Ni-Ni/sub 3/Ti-Ni/sub 3/Al-- Cr alloy at 1000 deg . The cross section of the Ni--Cr-Ti--Al alloy in the limited solid solution of nickel ( gamma ) and the two phase ( gamma + gamma ') was investigated for constant content of Cr(17%) and Ti(1.8%) and varying content of Al(0 to 12%). The thermal analysis showed the crystullization of the eutectic composition of the alloy at 1280 deg with 9% Al. The solubility of Al in the solid solution of the Ni-Cr-Ti-Al was found with 6 and 8% Al at 1200 deg , for nearly 6% Al at 1050 deg , and with 4 to 6% Al at 900 deg . The increase of the Al content in the quaternary solid solution of Ni(with 17 to 20% Cr and 1.8 to 2.4% Ti) sharply increased its heat resistance. The alloy with 6.40% Al was tested at 900 deg and 8 kg/mm/sup 2/ tension for 1000 hr and did not show disintegration even under a further test with 12 kg/mm/sup 2/ for 100 hr. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-12-009194
• OSTI ID: 4329559
• Journal Information: Izvest. Akad. Nauk S.S.S.R. Otdel. Tekh. Nauk, Journal Name: Izvest. Akad. Nauk S.S.S.R. Otdel. Tekh. Nauk Vol. Vol: No. 12
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALUMINUM ALLOYS
CHROMIUM ALLOYS
CRYSTALLIZATION
EUTECTICS
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
MATERIALS TESTING
MINERALOGY, METALLURGY, AND CERAMICS
NICKEL ALLOYS
PHASE DIAGRAMS
QUANTITY RATIO
SOLID SOLUTIONS
SOLUBILITY
STABILITY
THERMODYNAMICS
TITANIUM ALLOYS