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采用差示扫描量热法、X射线衍射及透射电子显微镜研究了固溶和固溶-冷轧Ag-7wt.% Cu合金在时效过程中富Cu相的析出动力学和形貌特征,同时结合电阻率和显微硬度的测量,定量对比了固溶和固溶-冷轧Ag-7wt.% Cu合金时效过程中富Cu相对电阻率和硬度的影响及其机理.研究结果表明:固溶样品中富Cu相反应温度为300 C350 C,析出激活能为(1111.6)kJ/mol;而固溶-冷轧样品中由于形变能的存在,富Cu相温度降低为290 C330 C,析出激活能升高为(12812)kJ/mol.XRD结果证实富Cu相的析出过程与时效温度有关.固溶和固溶-冷轧合金在450 C时效后均能观察到球状的富Cu相,富Cu相的析出和溶解过程对电阻率和显微硬度有显著影响.当时效温度低于450 C时,随时效温度的提高,固溶-时效样品的电阻率降低,显微硬度增加;而固溶-冷轧-时效样品的电阻率和显微硬度均逐渐降低.显微硬度除了受富Cu相的影响外,还受到位错和形变孪晶的影响.当时效温度高于450 C时,两种样品的电阻率增大,而显微硬度降低.
[1] Northover S M, Northover J P 2014 Mater. Charact. 90 173
[2] Wanhill RJ H 2005 Anal. Prev. 5 41
[3] Embury J D, Han K 1998 Curr. Opin. Solid State Mater. Sci. 3 304
[4] Lussana D, Castellero A, Vedani M, Ripamonti D, Angella G, Baricco M 2014 J. Alloys Compd. 615 S633
[5] Subramanian P, Perepezko J 1993 J. Phase Equilib. 14 62
[6] Wiest P Z 1933 Metallkd. 25 238
[7] Hamana D, Boumaza L 2009 J. Alloys Compd. 477 217
[8] Gayler M, Carrington W 1947 Acta Mater. 73 625
[9] Butrymowicz D B, Manning J R, Read M E 1974 J. Phys. Chem. Ref. Data 3 527
[10] Jones F, Leech P, Sykes C 1942 Proc. R. Soc. London Ser. A 181 154
[11] Youssef S 1996 Physica B 228 337
[12] Nada R 2004 Physica B 349 166
[13] Wang C J, Ning Y T, Zhang K H, Geng Y H, Bi J, Zhang J M 2009 Mater. Sci. Eng. A 517 219
[14] Kissinger H E 1957 Anal. Chem. 29 1702
[15] Zuo X W, Zhao C C, Zhang L, Wang E G 2016 Mater. 9 569
[16] Zhao C C, Zuo X W, Wang E G, Niu R M, Han K 2016 Mater. Sci. Eng. A 652 296
[17] Kurz W, Trivedi R 1996 Metall. Mater. Trans. A 27 625
[18] Northover P, Northover S, Wilson A 2013 Met. Sci. 2 253
[19] Colombo S, Battaini P, Airoldi G 2007 J. Alloys Compd. 437 107
[20] Gaganov A, Freudenberger J, Botcharova E, Schultz L 2006 Mater. Sci. Eng. A 437 313
[21] Smith D R, Fickett F 1995 J. Res. Nat. Inst. Stand. Technol. 100 119
[22] Zuo X W, Guo R, An B L, Zhang L, Wang E G 2016 Acta Metall. Sin. 65 143 (in Chinese)[左小伟, 郭睿, 安佰灵, 张林, 王恩刚2016金属学报65 143]
[23] Mohamed I F, Yonenaga Y, Lee S, Edalati K, Horita Z 2015 Mater. Sci. Eng. A 627 111
[24] Frye J H, Hume-Rothery W 1942 Proc. R. Soc. London Ser. A 8 1
[25] Freudenberger J, Lyubimova J, Gaganov A, Witte H, Hickman A L, Jones H 2010 Mater. Sci. Eng. A 527 2004
[26] Pugh S 1954 Philos. Mag. 45 823
[27] Gottstein G 2007 Physikalische Grundlagen der Materialkunde (3rd Ed.) (New York:Springer-Verlag) p271
[28] Hull D, Bacon D J 1989 Introduction to Dislocations (2nd Ed.) (Oxford:Pergamon Press) p243
[29] Williamson G, Smallman R 1956 Philos. Mag. 1 34
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[1] Northover S M, Northover J P 2014 Mater. Charact. 90 173
[2] Wanhill RJ H 2005 Anal. Prev. 5 41
[3] Embury J D, Han K 1998 Curr. Opin. Solid State Mater. Sci. 3 304
[4] Lussana D, Castellero A, Vedani M, Ripamonti D, Angella G, Baricco M 2014 J. Alloys Compd. 615 S633
[5] Subramanian P, Perepezko J 1993 J. Phase Equilib. 14 62
[6] Wiest P Z 1933 Metallkd. 25 238
[7] Hamana D, Boumaza L 2009 J. Alloys Compd. 477 217
[8] Gayler M, Carrington W 1947 Acta Mater. 73 625
[9] Butrymowicz D B, Manning J R, Read M E 1974 J. Phys. Chem. Ref. Data 3 527
[10] Jones F, Leech P, Sykes C 1942 Proc. R. Soc. London Ser. A 181 154
[11] Youssef S 1996 Physica B 228 337
[12] Nada R 2004 Physica B 349 166
[13] Wang C J, Ning Y T, Zhang K H, Geng Y H, Bi J, Zhang J M 2009 Mater. Sci. Eng. A 517 219
[14] Kissinger H E 1957 Anal. Chem. 29 1702
[15] Zuo X W, Zhao C C, Zhang L, Wang E G 2016 Mater. 9 569
[16] Zhao C C, Zuo X W, Wang E G, Niu R M, Han K 2016 Mater. Sci. Eng. A 652 296
[17] Kurz W, Trivedi R 1996 Metall. Mater. Trans. A 27 625
[18] Northover P, Northover S, Wilson A 2013 Met. Sci. 2 253
[19] Colombo S, Battaini P, Airoldi G 2007 J. Alloys Compd. 437 107
[20] Gaganov A, Freudenberger J, Botcharova E, Schultz L 2006 Mater. Sci. Eng. A 437 313
[21] Smith D R, Fickett F 1995 J. Res. Nat. Inst. Stand. Technol. 100 119
[22] Zuo X W, Guo R, An B L, Zhang L, Wang E G 2016 Acta Metall. Sin. 65 143 (in Chinese)[左小伟, 郭睿, 安佰灵, 张林, 王恩刚2016金属学报65 143]
[23] Mohamed I F, Yonenaga Y, Lee S, Edalati K, Horita Z 2015 Mater. Sci. Eng. A 627 111
[24] Frye J H, Hume-Rothery W 1942 Proc. R. Soc. London Ser. A 8 1
[25] Freudenberger J, Lyubimova J, Gaganov A, Witte H, Hickman A L, Jones H 2010 Mater. Sci. Eng. A 527 2004
[26] Pugh S 1954 Philos. Mag. 45 823
[27] Gottstein G 2007 Physikalische Grundlagen der Materialkunde (3rd Ed.) (New York:Springer-Verlag) p271
[28] Hull D, Bacon D J 1989 Introduction to Dislocations (2nd Ed.) (Oxford:Pergamon Press) p243
[29] Williamson G, Smallman R 1956 Philos. Mag. 1 34
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