采用XRD测定了Zr-4合金板材的织构,用拉扭试验机分别测试了Zr-4合金板材在室温时轧向(R试样,拉伸轴平行于轧向)和横向(T试样,拉伸轴平行于横向)的低周疲劳性能,用TEM研究了Zr-4合金的疲劳亚结构.结果表明:Zr-4合金板材存在明显的织构;轧向的低周疲劳性能高于横向;在循环变形过程中,只有部分晶粒发生了塑性变形,发生塑性变形的晶粒内存在着许多位错和滑移线,T试样中的位错和滑移线比R试样更稠密.板材织构造成了R试样和T试样的低周疲劳寿命.
参考文献
| [1] | 李聪 .锆合金的低周疲劳行为研究[D].四川大学,2003. |
| [2] | Tenckhoff E;Rittenhouse P L .[J].Journal of Nuclear Materials,1970,35(01):14. |
| [3] | Tenckhoff E .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1972,9(10):1401. |
| [4] | Ballinger R G;Lucas G E;Pelloux R M .[J].Journal of Nuclear Materials,1984,126(01):53. |
| [5] | Nakatsuka M;Hayashi Y .[J].J Nucl Sci &Tech,1981,18(10):785. |
| [6] | Lee D H;Kwun S I .[J].Scripta Metallurgica et Materialia,1994,31(11):1475. |
| [7] | Choi H I;Lee D H;Kwun S I .[J].Scripta Materialia,1998,38(04):565. |
| [8] | Akhtar A;Teghtsoonian A .[J].Acta Materialia,1971,19(07):655. |
| [9] | Tan X;Gu H;Laird C et al.[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1998,29(02):507. |
| [10] | Xiao L;Umakoshi Y .[J].Materials Science and Engineering,2003,A339(1-2):63. |
| [11] | Kuhlmann Wilsdorf D;Laird C .[J].Materials Science and Engineering,1979,37(02):111. |
| [12] | Pedersen O B;Carstensen J V .[J].Materials Science and Engineering,2000,A285(01):253. |
| [13] | Gerland M;Alain R;Saadi B A et al.[J].Materials Science and Engineering,1997,A229(1-2):68. |
| [14] | Yaguchi H;Mitani H;Nagano K et al.[J].Materials Science and Engineering,2001,A315(1-2):189. |
| [15] | Huang H L .[J].Materials Science and Engineering,2003,A342:38. |
| [16] | 肖林,白菊丽.Zr-4合金双轴疲劳行为及其微观变形机理Ⅱ.双轴循环变形亚结构及其织构的发展[J].金属学报,2000(09):919-925. |
| [17] | Xiao L;Umakoshi Y;Sun J .[J].Materials Science and Engineering,2000,A292(01):40. |
| [18] | Mughrabi H .[J].Materials Science and Engineering,2001,A319-321:139. |
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