| 淬火温度对Zr-4合金显微组织和拉仲性能的影响 |
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| 引用本文： | 高巍,徐悠,王正品,杨文涛,石崇哲.淬火温度对Zr-4合金显微组织和拉仲性能的影响[J].西安工业大学学报,2013(12):993-999. |
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| 作者姓名： | 高巍 徐悠 王正品 杨文涛 石崇哲 |
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| 作者单位： | 西安工业大学材料与化工学院,西安710021 |
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| 基金项目： | 陕西省自然基金项目（2011JM7006） |
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| 摘 要： | 为探讨不同淬火温度对核燃料包壳管Zr-4合金力学性能的影响．本文分析了Zr-4合金的显微组织，通过对再结晶退火态的Zr-4合金进行不同温度淬火及回火热处理，在不同热处理状态下对试样进行室温环向拉伸试验，分析对比了试样的拉伸力学性能，并对拉伸后的试样进行断口扫描，分析断裂机理．试验结果表明：包壳管Zr-4合金在980℃淬火后晶粒弦长为145．62μm，相比920℃、950℃的弦长增大，其抗拉强度为740MPa，屈服强度为649MPa．淬火后断口类型属解理脆性断裂．
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| 关 键 词： | Zr-4合金 淬火温度 显微组织 拉伸性能 |
Quenching Temperature on Microstructure and Properties of Zr-4 Alloy |
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| Authors: | GAO Wei XU You WANG Zheng-pin YANG Wen-tao SHI Chong-zhe |
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| Affiliation: | (School of Materials and Chemical Engineering, Xi＇ an Technological University, Xi＇ an 710021, China) |
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| Abstract: | The microstruetures and properties of Zr-4 alloy after heat-treatment in different quenching temperatures were studied. The tensile properties of tubes of different heat-treatment were studied by means of static tensile test at room temperature. The fracture mechanisms of Zr-4 tubes after tensile test were studied by SEM. The result showed that the grain chord length after 980 ~C quenching was 145.62 μm and was longer than that at other temperatures. The tensile strength was 740 MPa, and the yield strength was 649 MPa after quenching at 980 ℃. The tensile fracture of Zr-4 alloys occured in the manner of cleavage brittle fracture at room temperature according to the SEM fracture surface observation. |
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| Keywords: | Zr-4 alloy quenching temperature microstructure tensile properties |
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