| ZL108合金淬火敏感性的研究 |
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| 引用本文： | 刘志勇,王明星,翁永刚,王雪青,杨勇. ZL108合金淬火敏感性的研究[J]. 郑州大学学报(理学版), 2001, 33(1): 41-44 |
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| 作者姓名： | 刘志勇 王明星 翁永刚 王雪青 杨勇 |
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| 作者单位： | 郑州大学材料物理重点实验室 郑州 450052 |
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| 摘 要： | 考察了ZL108合金在不同淬火速率下的综合机械性能，研究了合金的淬火敏感性，并初步确定了该合金较佳的淬火速率.实验结果表明合金的屈服强度σ0.2与淬火速率δ′的对数值之间存在着线性关系，σ
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| 关 键 词： | 淬火敏感性 淬火速率 ZL108合金 |
| 文章编号： | 1001-8212(2001)01-0041-05 |
| 修稿时间： | 2000-10-18 |
Quench Sensitivity ofZL108 Alloy |
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| Abstract: | The quench sensitivity of ZL108 casting alloy is studied by theresearch of the effect of quench rate on the combination of strength and ductility properties. The favorite quench condition is preliminarily established. The experimental results show that the yield stress ( offset=0.2% )σ0.2 is a logarithmic function of the quench rate, i.e. σ0.2=48.99log(δ′)+226.6 (MPa). As the quench rate increases from 0.7℃/s to 33.7℃/s, the tensile strength(σb), elongation(δ5) and fracture energy (E) increase as well, but as the quench rate further increases to 63.5℃/s, a significant fall of σb,δ5 and E is observed. It is found that the combination of strength and ductility of ZL108 alloy will be better when quenched into water with 60℃ ,i.e. when the quench rate is 33.7℃/s. |
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