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| 添加Ce对5CrNiMo钢强度和韧性的影响及低周疲劳寿命的估算 | |
| 引用本文： | 郭洪飞,高文海,郝新,何智慧.添加Ce对5CrNiMo钢强度和韧性的影响及低周疲劳寿命的估算[J].金属热处理,2009,34(2). |
| 作者姓名： | 郭洪飞 高文海 郝新 何智慧 |
| 作者单位： | 1. 内蒙古北方重工业集团,包头北方锻造有限责任公司,内蒙古,包头,014033;内蒙古工业大学,材料科学与工程学院,内蒙古,呼和浩特,010051 2. 内蒙古北方重工业集团,包头北方锻造有限责任公司,内蒙古,包头,014033 3. 内蒙古工业大学,材料科学与工程学院,内蒙古,呼和浩特,010051 |
| 摘 要： | 在5CrNiMo热作模具钢中分别添加4种不同含量Ce后,对其强度、韧性和弹性模量的变化及其低周疲劳寿命进行了测试和估算.结果表明,在适当的范围内添加Ce可显著提高强度和韧性,当Ce添加量为0.20%(质量分数)时,5CrNiMo钢的强度、韧性最好,比不添加Ce的钢在相同断裂循环数N'f=100时,总应变范围△εT提高61.2%. |
| 关 键 词： | Ce(铈) 热作模具钢 强度 韧性 低周疲劳寿命 |
Effect of Ce added to 5CrNiMo steel on its strength and toughness and estimation of its low cyclic fatigue life |
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| GUO Hong-fei,GAO Wen-hai,HAO Xin,HE Zhi-hui.Effect of Ce added to 5CrNiMo steel on its strength and toughness and estimation of its low cyclic fatigue life[J].Heat Treatment of Metals,2009,34(2). | |
| Authors: | GUO Hong-fei GAO Wen-hai HAO Xin HE Zhi-hui |
| Affiliation: | 1.Baotou North Forging Co.;Ltd.;Inner Mongolia North Heavy Industries Group;Baotou Inner Mongolia 014033;China;2.College of Materials Science and Engineering;Inner Mongolia University of Technology;Hohhot Inner Mongolia 010051;China |
| Abstract: | The changes of the strength,toughness and elastic modulus of 5CrNiMo hot work die steel with four additions of Ce were studied.The low cyclic fatigue life of 5CrNiMo hot work die was estimated.The results show that the strength and toughness are improved greatly with proper addition of Ce.And when the addition of Ce is 0.20%,the 5CrNiMo steel has the best strength and toughness.Compared with the 5CrNiMo steel without Ce under the same rupture cycle number(N'f=100),overall strain scope is risen by 61.2%. |
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