国家自然科学基金 (50571083)；国家高技术研究发展计划 (2008AA031071)
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采用单向拉伸和对称拉压循环变形方法 (R=emin/emax=–1)，研究了不同热轧温度 (650, 700和800 ℃)、不同取向(平行于轧向和垂直于轧向)、不同试验温度 (室温和375 ℃高温) 条件下NZ2合金板材试样的拉伸、低周疲劳性能。通过对合金显微组织，力学性能以及疲劳寿命曲线的分析和讨论，得出NZ2合金在650 ℃热轧能获得较好的综合力学性能
By using monotonic tension and fully-reversed tension-compression loading with strain control (R = emin/emax= –1), the tensile properties and low cycle fatigue (LCF) behavior of NZ2 alloy plate were studied with different hot-rolling temperatures (650, 700 and 800 oC), different orientation (rectangular and transverse) and different testing temperatures (room temperature and 375 oC). Results indicate that NZ2 alloy plates with lower hot-rolling temperature (650 oC) have better comprehensive mechanical properties by analyzing the microstructure, mechanical properties and the low cycle fatigue lifetime curves
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周 军,李中奎,张建军,王文生,田 锋,石明华.热轧温度对NZ2合金力学行为的影响[J].稀有金属材料与工程,2011,40(11):2047~2050.[Zhou Jun, Li Zhongkui, Zhang Jianjun, Wang Wensheng, Tian Feng, Shi Minghua. Influence of Hot Rolling Temperature on Mechanical Properties of NZ2 Alloy[J]. Rare Metal Materials and Engineering,2011,40(11):2047~2050.]
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- 收稿日期:2011-04-09