| 亚临界淬火对LZ50钢车轴性能的影响 |
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| 引用本文： | 吴海英,龙刚,王旭,蒋波,张茹.亚临界淬火对LZ50钢车轴性能的影响[J].机车车辆工艺,2010(1):1-3,12. |
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| 作者姓名： | 吴海英 龙刚 王旭 蒋波 张茹 |
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| 作者单位： | 1. 晋西车轴股份有限公司,山西,太原,030027
2. 晋西机器工业集团有限责任公司,山西,太原,030027 |
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| 摘 要： | 对LZ50钢车轴亚临界淬火前后的力学性能、晶粒度以及车轴表面残余应力的变化进行了试验,分析了亚临界淬火对LZ50钢车轴拉伸性能和表面质量的影响。试验表明,亚临界淬火对车轴拉伸性能无明显影响,然而车轴表面的残余应力变化很大,可由拉应力改变为压应力,而且通过优化加工工艺,表面压应力的增幅会更大,说明亚临界淬火能有效提高车轴的疲劳寿命。
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| 关 键 词： | 车轴 亚临界淬火 LZ50钢 拉伸性能 表面残余应力 |
Effect of Sub-critically Quenching to LZ50 Steel Rail Car Axle |
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| Wu Hai-ying,Long Gang,Wang Xu,Jiang Bo,Zhang Ru.Effect of Sub-critically Quenching to LZ50 Steel Rail Car Axle[J].Locomotive & Rolling Stock Technology,2010(1):1-3,12. |
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| Authors: | Wu Hai-ying Long Gang Wang Xu Jiang Bo Zhang Ru |
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| Affiliation: | 1.Technical development department for Jinxi axle company limited;Shanxi;Taiyuan 030027;2.Lab center for Jinxi machine industries group;Taiyuan 030027 |
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| Abstract: | This article has tested on LZ50 steel rail car axle before and after sub-critically quenching for mechanical property,grain degree and the change of residual stresses on axle surface,and has analyzed the quenching effect of tensile property and surface quality to LZ50 steel rail car axle.Tests shows that the sub-critically quenching has no obvious effect to tensile property,but the residual stresses on axle surface change a lot,which can be from tensile stress to pressure stress.And by optimization of the p... |
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| Keywords: | Axle Sub-critically Quenching LZ50 Steel Tensile Property Surface Residual Stress |
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