| 内螺纹滚压强化对超高强度钢疲劳性能的影响 |
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| 引用本文： | 宋德玉,高文,赵振业,张伟. 内螺纹滚压强化对超高强度钢疲劳性能的影响[J]. 航空学报, 1995, 16(5): 619-622 |
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| 作者姓名： | 宋德玉 高文 赵振业 张伟 |
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| 作者单位： | 北京航空材料研究所4室,北京,100095 |
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| 摘 要： | σ0 .1从 2 5 0 MPa提高到 448MPa,提高幅度达 79%。
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| 关 键 词： | 高强度钢 螺纹 残余应力 |
| 收稿时间： | 1994-03-24 |
| 修稿时间： | 1994-07-18 |
EFFECT OF FEMALE SCREW ROLLING STRENGTHENING ON FATIGUE PROPERTY OF 300M SUPERHIGH STRENGTH STEEL |
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| Song Deyu,Gao Wen,Zhao Zhenye,Zhang Wei. EFFECT OF FEMALE SCREW ROLLING STRENGTHENING ON FATIGUE PROPERTY OF 300M SUPERHIGH STRENGTH STEEL[J]. Acta Aeronautica et Astronautica Sinica, 1995, 16(5): 619-622 |
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| Authors: | Song Deyu Gao Wen Zhao Zhenye Zhang Wei |
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| Affiliation: | Faculty 4 of Institude of Aeronautical Materials, Beijing,100095 |
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| Abstract: | The effect of female screw rolling strengthening on the fatigue property of 300M superhigh steel has been investigated. The stregthening mechanism was studied also by means of X ray stress analyses SEM and TEM. It was shown that by screw rolling strengthening the fatigue strength limitation of the specimen was improved from σ 0 1 =250MPa to σ 0 1 =448MPa. The high macroscopic compressive residual stress, the increase in dislocation density in the strengthened layer and the decrease in the screw surface roughness were the major factors leading to the enhanced fatigue strength. |
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| Keywords: | high strength steels threads residual stress |
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