| 高碳Cr—Mo—W钢M／B复相组织疲劳行为研究 |
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| 引用本文： | 田保红,郑世安,吴磊.高碳Cr—Mo—W钢M／B复相组织疲劳行为研究[J].金属学报,1993,29(3):46-50. |
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| 作者姓名： | 田保红 郑世安 吴磊 |
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| 作者单位： | 洛阳工学院，洛阳工学院材料工程系，洛阳工学院 副教授，洛阳 471039 |
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| 摘 要： | 用紧凑拉伸试样测定了65Cr5Mo3W2VSiTi(LM2)钢不同贝氏体量和不同回火温度的M/B复相组织的疲劳裂纹扩展速率,根据试验数据估算了各工艺的疲劳门槛值。结果表明,LM2钢M/B复相组织的疲劳裂纹扩展属非连续扩展机制,疲劳裂纹微观扩展速率的计算值和宏观扩展速率的实测值相近
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| 关 键 词： | 复相组织 疲劳 高碳铬相钨钢 |
| 收稿时间： | 1993-03-18 |
| 修稿时间： | 1993-03-18 |
FATIGUE BEHAVIOUR OF M/B DUPLEX STRUCTURE IN A HIGH CARBON Cr-Mo-W STEEL |
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| TIAN Baohong,ZHENG Shi'an,WU Lei Luoyang Institute of Technology associate professor.FATIGUE BEHAVIOUR OF M/B DUPLEX STRUCTURE IN A HIGH CARBON Cr-Mo-W STEEL[J].Acta Metallurgica Sinica,1993,29(3):46-50. |
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| Authors: | TIAN Baohong ZHENG Shi'an WU Lei Luoyang Institute of Technology associate professor |
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| Affiliation: | TIAN Baohong,ZHENG Shi'an,WU Lei Luoyang Institute of Technology associate professor,Department of Materials Engineering,Luoyang Institute of Technology,Luoyang |
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| Abstract: | Determination was carried out of fatigue crack propagation rate of steel65Cr5Mo3W2VSiTi (LM2) with various bainite contents and M/B duplex structure tem-pered at various temperatures. The threshold value of fatigue for each processing was esti-mated by experimental data. The mechanism for fatigue crack propagation of M / B duplexstructure in steel LM2 seems to be non-continuous. Both calculated and measured fatiguecrack micro-propagation rates are found to be matched. |
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| Keywords: | duplex structure fatigue crack propagation rate threshold value steel 65Cr5Mo3W2VSiTi |
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