Moisture-Induced Environmental Embrittlement of Ordered Intermetallic Alloys at Ambient Temperatures

Liu, C. T.

doi:10.1007/978-94-011-2534-5_21

Moisture-Induced Environmental Embrittlement of Ordered Intermetallic Alloys at Ambient Temperatures

Conference · Sun Jun 23 04:00:00 EDT 1991 · Ordered Intermetallics — Physical Metallurgy and Mechanical Behaviour

DOI:https://doi.org/10.1007/978-94-011-2534-5_21· OSTI ID:5279596

Liu, C. T. ^[1]

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Recent studies have demonstrated that moisture-induced environmental embrittlement is a major cause of low ductility and brittle fracture in ordered intermetallics with high crystal symmetries (e.g. L1₂ and B2). The embrittlement involves the reaction of reactive elements in intermetallics with moisture in air and the generation of atomic hydrogen at crack tips. The loss in ductility at ambient temperatures is generally accompanied by a change in fracture mode from ductile appearance to brittle grain-boundary fracture in many L1₂ intermetallics, and to brittle cleavage in body-centered cubic (bcc)-ordered intermetallics. In a number of cases, the embrittlement was alleviated by alloy design through control of microstructure and alloy composition.

View Conference

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)

DOE Contract Number:: AC05-84OR21400

OSTI ID:: 5279596

Report Number(s):: CONF-9106275--1; ON: DE91018852; ISBN: 978-94-010-5119-4

Conference Information:: Journal Name: Ordered Intermetallics — Physical Metallurgy and Mechanical Behaviour

Country of Publication:: United States

Language:: English

References (30)

Environmental effects on room-temperature ductility and fracture in Fe3Al Liu, C. T.; McKamey, C. G.; Lee, E. H. Scripta Metallurgica et Materialia, Vol. 24, Issue 2 https://doi.org/10.1016/0956-716X(90)90275-L	journal	February 1990
First principles investigation of hydrogen embrittlement in FeAl Fu, C. L.; Painter, G. S. Journal of Materials Research, Vol. 6, Issue 4 https://doi.org/10.1557/JMR.1991.0719	journal	April 1991
Improved ductility and strength of Ni3Al compound by beryllium addition Takasugi, T.; Masahashi, N.; Izumi, O. Scripta Metallurgica, Vol. 20, Issue 10 https://doi.org/10.1016/0036-9748(86)90087-6	journal	October 1986
Electronic effect on grain boundary properties of ordered intermetallics Takasugi, Takayuki; Izumi, Osamu Scripta Metallurgica et Materialia, Vol. 25, Issue 6 https://doi.org/10.1016/0956-716X(91)90394-G	journal	June 1991
Discussion of “low temperature ageing of Fe-N austenite” by J. Foct, P. Rochegude and A. Hendry: I. Mechanism of the bainite reaction Aaronson, H. I.; Reynolds, W. T.; Spanos, G. Scripta Metallurgica et Materialia, Vol. 24, Issue 1 https://doi.org/10.1016/0956-716X(90)90595-8	journal	January 1990
The effect of order on hydrogen embrittlement of Ni3Fe Camus, G. M.; Stoloff, N. S.; Duquette, D. J. Acta Metallurgica, Vol. 37, Issue 5 https://doi.org/10.1016/0001-6160(89)90181-8	journal	May 1989
Effect of chromium on room temperature ductility and fracture mode in Fe3Al McKamey, C. G.; Horton, J. A.; Liu, C. T. Scripta Metallurgica, Vol. 22, Issue 10 https://doi.org/10.1016/S0036-9748(88)80265-5	journal	October 1988
Mechanisms of ductility improvement in L1₂ compounds Izumi, Osamu; Takasugi, Takayuki Journal of Materials Research, Vol. 3, Issue 3 https://doi.org/10.1557/JMR.1988.0426	journal	June 1988
Effect of boron on the tensile properties of B2 FeAl Crimp, M. A.; Vedula, K. Materials Science and Engineering, Vol. 78, Issue 2 https://doi.org/10.1016/0025-5416(86)90323-X	journal	March 1986
Electronic and structural studies of grain boundary strength and fracture in L12 ordered alloys—I. On binary A3B alloys Takasugi, T.; Izumi, O. Acta Metallurgica, Vol. 33, Issue 7 https://doi.org/10.1016/0001-6160(85)90236-6	journal	July 1985
An environmental effect as the major cause for room-temperature embrittlement in FeAl Liu, C. T.; Lee, E. H.; McKamey, C. G. Scripta Metallurgica, Vol. 23, Issue 6 https://doi.org/10.1016/0036-9748(89)90263-9	journal	June 1989
Intergranular hydrogen embrittlement of Co3Ti Takasugi, T.; Izumi, O. Scripta Metallurgica, Vol. 19, Issue 7 https://doi.org/10.1016/0036-9748(85)90217-0	journal	July 1985
Effect of chromium on properties of Fe₃Al McKamey, C. G.; Horton, J. A.; Liu, C. T. Journal of Materials Research, Vol. 4, Issue 5 https://doi.org/10.1557/JMR.1989.1156	journal	October 1989
Effects of hydrogen on the properties of iron and steel Hirth, John P. Metallurgical Transactions A, Vol. 11, Issue 6 https://doi.org/10.1007/BF02654700	journal	June 1980
Hydrogen embrittlement of pseudobinary l12-type Ni3(Alo.4Mno.6) intermetallic compound Masahashi, N.; Takasugi, T.; Izumi, O. Metallurgical Transactions A, Vol. 19, Issue 2 https://doi.org/10.1007/BF02652545	journal	February 1988
Hydrogen embrittlement of Ni3Al+B Kuruvilla, A. K.; Stoloff, N. S. Scripta Metallurgica, Vol. 19, Issue 1 https://doi.org/10.1016/0036-9748(85)90270-4	journal	January 1985
Stress Corrosion and Hydrogen Embrittlement in an Aluminum Alloy Gest, R. J.; Troiano, A. R. CORROSION, Vol. 30, Issue 8 https://doi.org/10.5006/0010-9312-30.8.274	journal	August 1974
Mechanical properties of Ni3Al containing C, B and Be Masahashi, N.; Takasugi, T.; Izumi, O. Acta Metallurgica, Vol. 36, Issue 7 https://doi.org/10.1016/0001-6160(88)90251-9	journal	July 1988
Intercrystalline hydrogen transport in nanocrystalline nickel Palumbo, G.; Doyle, D. M.; El-Sherik, A. M. Scripta Metallurgica et Materialia, Vol. 25, Issue 3 https://doi.org/10.1016/0956-716X(91)90114-G	journal	March 1991
Electronic and structural studies of grain boundary strength and fracture in Ll2 ordered alloys—II. On the effect of third elements in Ni3Al alloy Takasugi, T.; Izumi, O.; Masahashi, N. Acta Metallurgica, Vol. 33, Issue 7 https://doi.org/10.1016/0001-6160(85)90237-8	journal	July 1985
Environmental embrittlement in boron-free and boron-doped FeAl (40 at. % Al) alloys Liu, C. T.; George, E. P. Scripta Metallurgica et Materialia, Vol. 24, Issue 7 https://doi.org/10.1016/0956-716X(90)90343-F	journal	July 1990
Environmental embrittlement in Ll2-ordered (Fe,Co)3V Nishimura, C.; Liu, C. T. Scripta Metallurgica et Materialia, Vol. 25, Issue 4 https://doi.org/10.1016/0956-716X(91)90226-Q	journal	April 1991
Dislocation distribution in transgranular stress corrosion cracking of naval brass Kramer, I. R.; Wu, B.; Feng, C. R. Materials Science and Engineering, Vol. 82 https://doi.org/10.1016/0025-5416(86)90102-3	journal	September 1986
On the mechanisms of hydrogen embrittlement of Ni3Al alloys Bond, G. M.; Robertson, I. M.; Birnbaum, H. K. Acta Metallurgica, Vol. 37, Issue 5 https://doi.org/10.1016/0001-6160(89)90172-7	journal	May 1989
The influence of hydrogen on deformation and fracture processes in Co3Ti polycrystals and single crystals Liu, Y.; Takasugi, T.; Izumi, O. Acta Metallurgica, Vol. 37, Issue 2 https://doi.org/10.1016/0001-6160(89)90234-4	journal	February 1989
Ductile Ordered Intermetallic Alloys Liu, C. T.; Stiegler, J. O. Science, Vol. 226, Issue 4675 https://doi.org/10.1126/science.226.4675.636	journal	November 1984
Theoretical modeling of gain boundary diffusion of hydrogen and its effect on permeation curves Yao, J.; Cahoon, J. R. Acta Metallurgica et Materialia, Vol. 39, Issue 1 https://doi.org/10.1016/0956-7151(91)90332-U	journal	January 1991
Influence of testing environment on the room temperature ductility of FeAl alloys Gaydosh, D. J.; Nathal, M. V. Scripta Metallurgica et Materialia, Vol. 24, Issue 7 https://doi.org/10.1016/0956-716X(90)90342-E	journal	July 1990
Factors affecting the intergranular hydrogen embrittlement of Co3Ti Takasugi, T.; Izumi, O. Acta Metallurgica, Vol. 34, Issue 4 https://doi.org/10.1016/0001-6160(86)90176-8	journal	April 1986
Influence of predeformation on microstructure and mechanical properties of 1020 dual phase steel Liu, Jingke; Jiang, Zhonghao; Lian, Jianshe Materials Science and Technology, Vol. 7, Issue 6 https://doi.org/10.1179/mst.1991.7.6.527	journal	June 1991

Similar Records

Environmental embrittlement of ordered intermetallic alloys at room temperature in moist atmospheres

Conference · Mon Dec 31 23:00:00 EST 1990 · OSTI ID:5981112

Environmental embrittlement: A major cause for low ductility of ordered intermetallics

Conference · Wed Dec 06 23:00:00 EST 1989 · OSTI ID:5070647

Environmental embrittlement and grain-boundary fracture in Ni sub 3 Si

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Scripta Metallurgica; (United States) · OSTI ID:5429457

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
AIR
ALLOYS
ALUMINIUM ALLOYS
BCC LATTICES
COBALT ALLOYS
COBALT BASE ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DUCTILITY
EMBRITTLEMENT
FLUIDS
FRACTURE PROPERTIES
GASES
INTERMETALLIC COMPOUNDS
IRON ALLOYS
MECHANICAL PROPERTIES
MOISTURE
TENSILE PROPERTIES
TITANIUM ALLOYS

Moisture-Induced Environmental Embrittlement of Ordered Intermetallic Alloys at Ambient Temperatures

Citation Formats

References (30)

Similar Records

Related Subjects