The literature dealing with creep of near γ-TiAl alloys is reviewed, including single and multiphase compositions. The characteristics of creep in the primary or transient, minimum strain rate or pseudo-steady state, and tertiary creep regimes are presented. Considerable experimental evidence indicates that a temperature-stress domain exists in which creep is controlled by dislocation climb. For multiphase compositions, the effect of microstructure on creep is discussed, with emphasis on the predominantly lamellar microstructure, which exhibits superior creep resistance. The influence of composition on creep resistance is presented in terms of intrinsic and extrinsic effects, and the associated role of β phase is discussed. Models for the creep of lamellar structures are reviewed. The current state of knowledge regarding creep of near γ-TiAl alloys precludes quantitative conclusions; however preliminary design of creep resistant microstructures is possible.
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References
1.
AUSTINC. M.KELLYT. J.: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, February 1995, The Minerals, Metals and Materials Society, 21-32.
2.
SMARSLYW.: in Proc. ‘European propulsion forum: The influ-ence of new materials and manufacturing processes on the design of future aero engines’, June 1993, Royal Aeronautical Society, Paper 22.
3.
LARSEND. E.WHEELERD. A.: in Proc. 42nd Annual Technical Meeting, Atlanta, GA, 1994, Investment Casting Institute, Paper 8.
4.
HARFIELD-WONSCHS. E.SPERLINGA. A.MORRISONR. S.DOWLINGW. E.ALLISONJ. E.: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, February 1995, The Minerals, Metals and Materials Society, 41-52.
5.
DOWLINGW. E.DONLONW. T.ALLISONJ. E.: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys VI Part I’, (ed. HortonJ. et al.), VoL 364, 757-767; 1995, Pittsburgh, PA, Materials Research Society.
6.
DAHMSM.: Adv. Perform. Mater., 1994, 1, 157–182.
7.
HUANGS.-C.cuasbrurrJ. c.: in Intermetallic compounds', (ed. WestbrookJ. H.FleischerR. L.), Vol. 2, 73–90; 1994, New York, John Wiley.
8.
FROESF. H.: J. Mater. Sci., 1992, 27, 5113-5140.
9.
KIMY.-W.: JOM, 1994, 46, 31–38.
10.
LONDONB.LARSEND. E.WHEELERD. A.AIMONEE R.: in Proc. Conf. ‘Structural intermetallics’, Champion, PA, September 1993, The Minerals, Metals and Materials Society, 151-157.
ISHIKAWAY., IC. MARUYAMA, and H. onc.AwA: in Proc. Conf ‘Structural intermetallics’, Champion, PA, September 1993, The Minerals, Metals and Materials Society, 345-351.
14.
MARUYAMAK.TAICAHASHIT.OIKAWAH.: Mater. Sci. Eng. A, 1992, 153, 433–437.
15.
TAICAHASHIT.NAGAIH.OHCAWAH.: Mater. Sci. Eng. A, 1989, 114, 13–20.
TAKAHASHIT.NAGAIH.OIKAWAH.: Mater. Sci. Eng. A, 1990, 128, 195–200.
18.
TAKAHASHIT.OIXAWAH.: in Proc. Conf. ‘Microstructure/ property relationships in titanium alloys and titanium alumin-ides’, Detroit, MI, October 1990, The Minerals, Metals and Materials Society, 227-236.
19.
OIKAWAH.: in Proc. Conf. ‘High temperature aluminides and intermetallics’, Indianapolis, IN, October, 1989, The Minerals, Metals and Materials Society, 353-373.
EVANSR. W.WILSHIREB.: ‘Creep of metals and alloys’, 197-243; 1985, London, The Institute of Metals.
25.
MARUYAMAK.AXAWAH.: in Proc. 3rd Int. Conf. on ‘Creep and fracture of engineering materials and structures’, Swansea, April 1987, The Institute of Metals, 815-828.
26.
EVANSR. W.WILSHIREB.: ‘Introduction to creep’, 23; 1993, London, The Institute of Materials.
HUGG.LOISEAUA., and P. VEYSSB1RE: Philos. Mag. A, 1988, 57, 499–523.
34.
KOOH.MATSUOT.RncucHEM.in Proc. Int. Symp. on Intermetallic compounds', JIMIS-6, Sendai, Japan, June 1991, Japan Institute of Metals, 519-523.
35.
KADB. K.FRASERH. L.: Philos. Mag. A, 1994, 69, 689–699.
36.
HAYESR. W.MARTINP. L.: in Proc. 5th Int. Conf. on ‘Creep and fracture of engineering materials and structures’, Swansea, March 1993, The Institute of Materials, 275-284.
37.
MARTINP. L.HAYESR. W.: in Proc. 5th Int. Conf. on ‘Creep and fracture of engineering materials and structures’, Swansea, March 1993, The Institute of Materials, 285-294.
38.
HAYESR. W.MARTINP. L.: Acta Metall. Mater., 1995, 43, 2761–2772.
39.
KROLLS.MEHRERH.STOLWIJKN.HERZIGC.ROSENKRANZR.FROMMEYERG.: Z. Metallkd., 1992, 83, 591–595.
40.
WILSHIREB.: in Proc. 4th Int. Conf. on ‘Creep and fracture of engineering materials and structures’, Swansea, April 1990, The Institute of Materials, 1-9.
WEERTMANJ.: in J. E. Dorn Memorial Symp. on ‘Rate processes in plastic deformation of materials’, Cleveland, OH, October 1972, American Society of Metals, 315-336.
44.
WUX.BEDDOESJ.ZHAOL.WALLACEW.: submitted to Acta Metall. Mater., 1995.
45.
ASHBYM. F.DYSONE. F.: in Proc. 6th Int. Conf. on Fracture on ‘Advances in fracture research’, 3-30; 1985, Oxford, Pergamon Press.
46.
HUANGS.-C.SHIND. S.: in Proc. Conf. `Microstructure/property relationships in titanium alloys and titanium aluminides', Detroit, MI, USA, October 1990, The Minerals, Metals and Materials Society, 105-122.
47.
TSUZUKAT.CLYNET. W.: in Proc. Conf. ‘Fatigue and fracture of ordered intermetallic materials I’, Pittsburgh, PA, USA, October 1994, The Minerals, Metals and Materials Society, 239-252.
48.
TSUZUKUT.SATOH.: J Phys. (France) IV, 1993, 3, (C7III), 389-395.
49.
WANGP.VISWANATHANG. B.VASUDEVANV. K.: Metall. Trans., 1992, 23A, 690–697.
50.
rumY.-W.FROESF. H.: in Proc. Conf. ‘High temperature intermetallics and aluminides’, Indianapolis, IN, USA, October, 1989, The Minerals, Metals and Materials Society, 465-492.
51.
NrEHT. G.WANGJ. N.: Scr. Metall. Mater., 1995, 33, 1101–1107.
52.
ES-SOUNIM.BARTELSA.WAGNERR.: Acta Metall. Mater., 1995, 43, 153–161.
53.
ES-SOUNIM.BARTELSA.WAGNERR.: Mater, Scl. Eng. A, 1995, 192/193, 698–706.
54.
BEDDOESJ.ZHAOL.TRIANTAFILLOUJ.AUP.WALLACEW.: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, USA, February 1995, The Minerals, Metals and Materials Society, 959-966.
55.
SOBOYEJOW. O.LEDERICHR. J.: in Proc. Conf. ‘Structural intermetallics’, Champion, PA, September 1993, The Minerals, Metals and Materials Society, 353-361.
56.
HAYESR. W.: Scr. Metall. Mater., 1993, 29, 1229–1233.
57.
MISHRAR. S.BANEIUEED.: Scr. Metall. Mater., 1994, 31, 1555–1560.
58.
MISHRAR. S.BANERJEED.MUKKERJEEA. K.: Mater. Sci. Eng. A, 1995, 192/193, 756–762.
59.
HAYESR. W.RHODESC.LONDONB.: Scr. Metall. Mater., 1995, 32, 867–872.
60.
HUANGJ. S.KIMY.-W.: Scr. Metall. Mater., 1991, 25, 1901–1906.
61.
HAYESR. W.LONDONB.: Acta Metall. Mater., 1992, 40, 2167–2175.
62.
MITAOS.TSUYAMAS.MinarawaK.: Mater. Sci. Eng. A, 1991, 143, 51–62.
63.
WANGJ. N.SCHWARTZA. J.MENT. G.LIUC. T.SIKKAV. K.CLEMENSD.: in proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, USA, February 1995, The Minerals, Metals and Materials Society, 949-958.
64.
MARTINP. L.LIRstrrH. A.: in Proc. 4th Int. Conf. on ‘Creep and fracture of engineering materials and structures’, Swansea, April 1990, The Institute of Materials, 255-263.
65.
WORTHB. D.JONESJ. W.ALLISONJ. E.: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, USA, February 1995, The Minerals, Metals and Materials Society, 931-938.
66.
POIRIERJ.-P.: ‘Creep of crystals’, 27-29; 1985, Cambridge University Press.
67.
TRIANTJ.'AFILLOU, J. BEDDOES, L. ZHAO, and W. WALLACE: Scripta Metall. Mater., 1994, 31, 1387–1392.
68.
FS-SOUNIM.BARTELSA.WAGNERR.: Mater. Sci. Eng. A, 1993, 171, 127–141.
ZHANGW. J.SPIGARELLIS.CERRIE.EVANGELISTAE.FRANCESCONIL.: Mater. Scl. Eng. A, to be published.
71.
WORTHB. D.JONESJ. W.ALLISONJ. E.DOWLINGW. E.: in Proc. Conf. ‘Titanium '92 science and technology’, San Diego, CA, USA, June 1993, The Minerals, Metals and Materials Society, 391-398.
72.
TONNESC.RoSLERJ.BAUMANNR.THUMANNM.: in Proc. Conf ‘Structural intermetallics’ Champion, PA, September 1993, The Minerals, Metals and Materials Society, 241-245.
73.
VISWANTHANG. B.VASUDEVANV. K.: in MRS Symp. Proc. on ‘High temperature intermetallic alloys V’, (ed. BakerI. et al.), Vol. 288, 787–792; 1993, Pittsburgh, PA, Materials Research Society.
74.
SCHWENKERS. W.RDAY.-W.: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, USA, February 1995, The Minerals, Metals and Materials Society, 985-992.
75.
SHIMD. S.HUANGS.-C.SCARRG. K.JANGH.CHESNUTTJ. C.: in Proc. Conf. ‘Microstructure/property relationships in titanium alloys and titanium aluminides’, Detroit, MI, USA, October 1990, The Minerals, Metals and Materials Society, 135-148.
76.
KELLERM. M.JONESP. E.PORTERW. I., in, and D. EYLON: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, USA, February 1995, The Minerals, Metals and Materials Society, 441-450.
77.
ZHAOL.BEDDOESJ., D. MORPH); and W. WALLACE: Mater. Scl. Eng. A, 1995, 192/193, 957–964.
78.
DUDZINSKID.ZHAOL.BEDDOESJ.WALLACEW.: Scripta Metall. Mater., to be published.
79.
MARTINP. L.MENDIRATTAM. G.LIPSITTH. A.: Metall. Trans., 1983, 14A, 2170–2174.
80.
WORTHD. B.JONESJ. W.ALLISONJ. E.: Metall Mater. Trans., 1995, 26A, 2947–2959.
81.
WORTHE. D.JONESJ. W.ALLISONJ. E.: Metall. Mater. Trans., 1995, 26A, 2961–2972.
82.
ES-SOUNIM.BARTELSA.WAGNERR.: in Proc. Conf. ‘Structural intermetallics’, Champion, PA, September 1993, The Minerals, Metals and Materials Society, 335-343.
83.
BARTHOLOMEUSZM. F.WANGQ.WERTJ. A.: Scripta Metall. Mater., 1993, 29, 389–394.
84.
KIMMD. I.WOLFENSTINEJ.: Scripta Metall. Mater., 1994, 30, 615–619.
85.
HAYESR. W.McQUAYR A.: Scripta Metall. Mater., 1994, 30, 259–264.
86.
NODAT.OKABEM.ISOBES.SAYASHIM.: Mater. Sci. Eng. A, 1995, 192/193, 774–779.
87.
GONZÁLEZ-DONCELG.WOLFENSTINEJ.: Scripta Metall. Mater., 1993, 28, 885.
88.
WHEELERD. A.LONDONB.LARSEND. E.: Scripta Metall. Mater., 1992, 26, 939–944.
SHERBYO. D.ICLUNDTR. H.MILLARA. K.: Metall. Trans. A, 1977, 8, 843–850.
91.
HIMBEAULTD. D.CAHOONJ. R.: Metall. Trans. A, 1993, 24, 2721–2729.
92.
JINZ.BIELERT. R.: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys VI — Part I’ (ed. HortonJ. et al.), Vol. 364, 505-510, 1995, Pittsburgh, PA, Materials Research Society.
93.
HAYESR. W.McQUAYP. A.: in Proc. Conf. `Microstructure/property relationships of titanium alloys', 1994, The Minerals, Metals and Materials Society, 267-277.
94.
SEOD. Y.ANS. U.BIELERT. R.LARSEND. E.BHOWALP.MERRICKH.: in Proc. Conf. ‘Gamma titanium aluminides’, Las Vegas, NV, USA, February 1995, The Minerals, Metals and Materials Society, 745-752.
95.
FENGC. R.SMITHH. H.MICHELD. J.CROWEC. R.: in MRS Symp. Proc. on Intermetallic matrix composites', (ed. AntonD. L. et al.), Vol. 194, 219–224; 1990, Pittsburgh, PA, Materials Research Society.
96.
JINZ.BIELERT. R.: Scripta Metall. Mater., 1992, 27, 1301–1306.
97.
INUIH.OHM. H.NAKAMURAA.YAMAGUCHIM.: Acta. Metall. Mater., 1992, 40, 3095–3104.
98.
BLACKBURNM. J.: in ‘The science, technology and application of titanium’, Vol. 3, 633–643; 1970, Oxford, Pergamon Press.
99.
INUIH.NAKAMURAA.YAMAGUCHIM.: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys IV’, (ed. JohnsonL. A. et al.), Vol. 213, 569–574; 1991, Pittsburgh, PA, Materials Research Society.
100.
NAKANOT.YOKOYAMAA.UMAKOSHIAND Y.: Scripta Metall. Mater., 1992, 27, 1253–1258.
101.
UMAKOSHIY.NAKANOT.YAMANET.: Mater. Sci Eng. A, 1992, 152, 81–88.
102.
INUIH.NAKAMURAA.OHM. H.YAMAGUCHIM.: Philos. Mag. A, 1992, 66, 557–573.
LARSEND. E.BHOWALP.MERRICKH.: presented at `TMS Fall meeting', Rosemont, IL, USA, October 1994, The Minerals, Metals and Materials Society.
106.
MARTINP. L.CARTERD. H.AHCINR. M., Sr, R. M. AIIUN, Jr, and L. CHRISTODOULOU: in Proc. 4th Int. Conf. on ‘Creep and fracture of engineering materials and structures’, Swansea, April 1990, Institute of Materials, 265-275.
107.
MARTINP. L.LIPSITTH. A.NUFLERN. T.WILLIAMSJ. C.: in Proc. 4th Int. Conf. on ‘Titanium’, Kyoto, Japan, May 1980, The Metallurgical Society of AIME, 1245-1254.
108.
MAEDAT.OICADAM.slumY.: in Proc. 6th Int. Conf. on ‘Mechanical behaviour of materials VI’, 199-204; 1992, Oxford, Pergamon Press.
109.
WUNDERLICHW.KREMSERT.FROMMEYERG.: Z. Metallkd., 1990, 80, 802–808.
110.
HUANGS. C.HALLE. L.: in MRS Symp. Proc. on ‘Alloy phase stability and design’, (ed. StocksG. M. et al.), Vol. 189, 381–386; 1991, Pittsburgh, PA, Materials Research Society.
BLACKBURNM. J.smrrnH. P.: & D on compositionand processing of titanium aluminides for turbine engines', Report AFWAL—TR-82-4086, US Air Force, 1982.
117.
HALLE. L. and s.-c. HUANG: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys III’, (ed. LiuC. T. et al.), Vol. 133, 373–383; 1989, Pittsburgh, PA, Materials Research Society.
118.
UREMORIR.HANAMURAT.MORIKAWAH.: Scripta Metall. Mater., 1992, 26, 969–974.
119.
AUR: unpublished research, National Research Council Canada, 1995,
120.
TSUYAMAS.MITAOS., and K. /vIINAICAWA: Mater. Sci. Eng. A, 1992, 153, 451–456.
121.
ZHAOL.BEDDOESJ.WALLACEW.: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys V’, (ed. BakerI. et al.), Vol. 288, 921–926; 1993, Pittsburgh, PA, Materials Research Society.
122.
ZHENGY.ZHAOL.TRANGRIK.: Scripta Metall. Mater., 1992, 26, 219–224.
123.
BEDDOESJ.AUP.vande MOSSELAERL.ZHAOL.WALLACEW.: in Proc. Conf. ‘Developments and applications of new ceramics and metal alloys’, Quebec, PQ, Canada, August 1993, Canadian Institute for Mining and Metallurgy, 435-446.
124.
KELLYT. J.JUHASM. C., and s.-c. nuANo: Scripta Metall. Mater., 1993, 29, 1409–1414.
125.
CHANK. S.: Metall. Trans. A, 1993, 24, 569–583.
126.
KIMY.-W.: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys IV’, (ed L. A. Johnson et al.), Vol. 213, 297-311; Pittsburgh, PA, Materials Research Society.
127.
MITAOS.TSUYAMAS.MINAICAWAK.: in Proc. Conf. `Microstructural/property relationships in titanium alumin-ides and alloys', Detroit, MI, USA, October 1991, The Minerals, Metals and Materials Society, 297-311.
128.
KOULA. K.IMMARIGEONJ.-P.WALLACEW.: in 'Advances in high temperature structural materials and protective coat-ings, (ed. KoulA. K. et al.), 95-125; 1994, Ottawa, National Research Council Canada.
129.
TANAICAM.HZUKAH.ASHIHARAF.: Trans. Iron Steel Inst. Jpn, 1988, 28, 129–135.
130.
TANAKAM., 0. MIYAGAWA, T. SAICAKI, H. HZUKA, F. ASHIHARA, and D. FUJISIHRO: J. Mater. Sci., 1988, 23, 621–628.
131.
GNANAMOORTHYR.MUTOHY.MIZUHARAY.: Mater. Sci. Eng. A, 1995, 194, 35–41.
BARTHOLOMEUSZM. F.WERTJ. A.: in MRS Symp. Proc. on ‘High temperature ordered intermetallic alloys VI’, (ed. HortonJ. et al.), Vol. 364, 511–516; 1995, Pittsburgh, PA, Materials Research Society.
