刘迨

• 1:北京起重运输机械研究所

摘要(Abstract)：

本文介绍了国外近年来在低应力强度疲劳裂纹扩展(LFCP)研究方面的一些情况,着重介绍了应力比R、材料强度、晶粒度和环境介质对LFCP的影响。当提高只或材料强度时,均可增加LFCP的da/dN 和降低(?)K_(tho)对铁素体-珠光体钢,粗化晶粒可以减少da/dN提高(?)K_(tho)对马氏体钢,晶粒度具有相反的影响。多数试验表明,在真空和惰性环境下可以降低LFCP的da/dN和提高(?)K_(tho)文章的后一部分,介绍了两个有关LFCP的模型。高强度钢的氢脆模型,把R、σ_y表征组织因素尺寸的ρ~*以及环境因素,对LFCP的影响联系起来了。应力松弛和循环蠕变模型,则解释了△K_t和△K_(th)的本质,并且说明了从大量试验归纳出来的△K_(ht)=0.7△K_t的简单定量关系。

关键词(KeyWords)：

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘迨

参考文献(References)：

• [1] R.J.Cooke, and C.J.Beevers: Mater. Sci. Fng., 13, 1974, 201．
• [2] R.O.Ritchie, V.A.Chang, and N.F.Paton: J.Fatigue Eng. Mater. Struc., 1, 1979．
• [3] J.L.Robinson; and C.J.Beevers: Met. Sci. J., 7, 1973, 153．
• [4] C.J.Beevers: Met. Sci., 11, 1977, 362．
• [5] G.Birkbeck, A.E. Inckle, and G.W.J. Waldron: J.Mater. Sci.; 6, 1971, 319．
• [6] J.L.Robinson, and C.J.Beevers: second Intern. Conf. on Titanium, Combridge, Mass., 1972．
• [7] R.J.Cooke, P.E. Irving, G.S.Booth, ant C.J.Beevers: Eng. Fract. Mech., 7, 1975, 69．
• [8] E.K.Priddle, F.Walker, and C. Wiltshire: Proe. Conf. on Influencc of Environment on Fatigue, London, 1977, 137．
• [9] P.E. Irving, and A.Kurzfeld: Met. Sci., 12, 1978, 495．
• [10] R.A.Oriani, and P.H.Josephic: Acta Metall., 22, 1974, 1065．
• [11] W.W.Gerberich, and Y.T.Chen: Metall. Trans., 6A, 1975, 271．
• [12] C.J. Beevers, R.J.Cooke, J.F.Knott, and R.O.Ritchie: Met. Sci., Vol.9, 1975, 119．
• [13] P.C.Paris, R.J.Bucci, E.T.Wessel, W.G.Clark, and T.R.Mager: "Stress analysis and growth of cracks", STP 513, 1972, 141．
• [14] R.J. Bucci, W.G.Clark, and P.C.Paris: 同上,177．
• [15] R.J.Bucci, P.C.Paris, R.W.Hertzberg, R.A.Schmidt, and A.F. Anderson: 同上, 125．
• [16] B.R.Kirby, and C.J.Beevers: Fatigue of Eng.Mat. Struc., Vol. 1, 1979． 203．
• [17] P.E. Irving, and L.N.McCartney: Met. Sci., 8/9, 1977, 351．
• [18] S.Suresh, C.M.Moss, and R.O.Ritchie: "Proc.and Japan Institute of Metals Int. symp. on hydrogen in metals," Sendi, Japan, 9, 1977, Paper 27B23．
• [19] R.O.Rithie: Metal Sci., 8/9, 1977, 368．
• [20] J. Masonnave, and J.P.Balon: Scripta Met, 10, 1976, 165．
• [21] J.P.Benson: Met. Sci., 9, 1979, 535．
• [22] S.Taika, K.TanaKa; and M.Hoshina: Proc. Fatigue Mechanism ASTM STP 675, 1979, 135．
• [23] G.R. Yoder, L.A.Cooley, and T.W.Crooker: NRL Memorandum Report 4570, 1981．
• [24] P.E. Irving, and C.J.Beevers. Met.Trans., 5, 1974, 391．
• [25] G.R. Yoder, L.A.Cooley, and T.W.Crooker: Proc.of 4th Intern. Conf. on Titanium, 1980．
• [26] J.R.Rice: Fatigue Crack Propagation, ASTM STP 415, 1967, 247．
• [27] M.F.Carlson, and R.O.Ritchie: Scripta Met., Vol.11, 1977, 1113．
• [28] H.W.LIU, and D.Liu: 待发表.
• [29] W.W.Gerberich, and N.R.Moody. Rroc.of Fatigue Mechznism, ASTM STP 675 1979, 292．
• [30] P.C.Paris, et al: "Stress Analysis and Growth of Cracks", ASTM STP 513, 1972, 141．
• [31] R.J.Bucci, et al: 同上, 125．
• [32] J.Mautz, and V. Weiss: "Cracks and Fracture", ASTM STP 601, 176, 154．
• [33] T.G.Lindly, and C.E.Richards: Fatigue Crack Growth at low Stresses in steels, Central Electricity Generating Broad Laboratory Note No. RD/L/N, 135/78, 8, 1978．
• [34] C.Bathias, A.Pineau, J.Pluvinage, and P.Rable: Fracture, Vol.2, 1977, 1283．
• [35] A.J.Mcevily, and J.Groeger: 同上, 1293．
• [36] P.E. Irving, and C.J.Beevers: Mater. Sci.Eng., 14, 1974, 229．
• [37] R.O.Ritchie: Intern. Met. Reviews, 5/6, 1979, 205．
• [38] V.Weiss, and D.N.Lal: Metall. Trans., 5, 1974, 1946．
• [39] H.W.Liu, and Dai Liu: Scripta Met., Vol.16, 5, 1982, 595．
• [40] A.S.Kuo, and H.W.Liu: Scripta Met., Vol.10, 1976, 723．