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研究了亚固溶和过固溶处理对Ni-Co基高温合金在400和450℃和不同应变速率下拉伸时的锯齿状塑性失稳现象的影响.实验结果表明,过固溶合金的晶粒尺寸和二次γ 相间距大于亚固溶合金.2种固溶处理后的合金都表现为反常动态应变时效,其锯齿状流变现象都是由置换固溶原子和可动位错的相互作用引起的.2种固溶处理后锯齿状流变的临界应变量的差别与合金内二次γ'相的间距和塑性变形时合金内位错密度有关;其应力差值的区别与塑性变形时合金内位错密度及由晶界控制的扩散有关.

参考文献

[1] Portevin A,Le Chatelier F.Comp Rend Acad Sci (Paris),1923; 176:50
[2] Brehet Y,Estrin Y.Acta Metall Mater,1995; 43:955
[3] Cottrell A H.Philos Mag,1953; 44:829
[4] McCormick P G.Acta Metall,1972; 20:351
[5] Beukel Den Van A.Phys Stat Sol,1975; 30:197
[6] Hayes R W,Hayes W C.Acta Metall,1982; 30:1295
[7] Nalawade S A,Sundararaman M,Kishore R,Shah J G.Scr Mater,2008; 59:991
[8] Hale C L,Rollings W S,Weaver M L.Mater Sci Eng,2001; A300:153
[9] Chen W,Chaturvedi M C.Mater Sci Eng,1997; A229:163
[10] Hayes R W.Acta Metall,1982; 30:1295
[11] Shankar V,Valsan M,Rao K B S,Mannan S L.Metall Mater Trans,2004; 35A:3129
[12] Sharghi-Mashtaghin R,Asgari S.Mater Sci Eng,2008;A486:376
[13] Roy A K,Pal J,Mukhopadhyay C.Mater Sci Eng,2008;A474:363
[14] Gopinath K,Gogia A K,Kamat S V,Ramamurty U.Acta Mater,2009; 57:1243
[15] Hollomon H.Trans AIME,1945; 162:268
[16] Samuel K G.J Phys,2006; 39D:203
[17] Qian K W,Reed-Hill R E.Acta Metall,1983; 31:87
[18] Venkadesan S,Phaniraj C,Sivaprassad P V,Rodriguez P.Acta Metall Mater,1992; 40:569
[19] Pink E.Scr Metall,1983; 17:847
[20] Gale W F,Totemeier T C.Smithells Metals Reference Book.London:Butterworth Heinemann,2004:3
[21] Nakada Y,Keh A S.Acta Metalt,1970; 18:437
[22] Srinivasan R,Banerjee R,Hwang J Y,Viswanathan G B,Tiley J,Dimiduk D M,Fraser H L.Phys Rev Lett,2009;102:086101
[23] Hwang J Y,Nag S,Singh A R P,Srinivasan R,Tiley J,Viswanathan G B,Fraser H L,Banerjee R.Metall Mater Trans,2009; 40A:3059
[24] Hwang J Y,Nag S,Singh A R P,Srinivasan R,Tiley J,Fraser H L,Banerjee R.Scr Mater,2009; 61:92
[25] Hwang J Y, Banerjee R, Tiley J, Srinivasan R,Viswanathan G B,Fraser H L.Metall Mater Trans,2009;40A:24
[26] Sleewyk A W.Acta Metall,1958; 6:598
[27] Lloyd D J,Chung D W,Chaturvedi M C.Acta Metall,1975; 23:93
[28] Xiao L G,Li X Q,Qian K W.Sci China,1990; 4A:423(萧林刚,李效琦,钱匡武.中国科学,1990; 4A:423)
[29] Xiao L G,Li X Q,Qian K W.Sci China,1990; 33A:1386
[30] Qian K W,Li X Q,Xiao L G.J Fuzhou Univ,2001; 6:8(钱匡武,李效琦,萧林刚.福州大学学报,2001:6:8)
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