| V/C对铸造热作模具钢热疲劳性能的影响 |
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| 引用本文： | 王娟,王树奇,崔向红,王峰.V/C对铸造热作模具钢热疲劳性能的影响[J].铸造,2007,56(3):251-254. |
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| 作者姓名： | 王娟 王树奇 崔向红 王峰 |
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| 作者单位： | 1. 江苏大学材料科学与工程学院,江苏镇江,212013
2. 吉林大学材料科学与工程学院,吉林长春,130022 |
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| 基金项目： | 国家计委产业化前期关键技术和成套设备研制开发项目;江苏省高校省重点实验室开放项目 |
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| 摘 要： | 采用自约束热疲劳试验方法,研究了不同V/C对铸造热作模具钢热疲劳性能的影响,并对比研究了铸造热作模具钢和H13钢的热疲劳性能。结果表明,铸造热作模具钢的热疲劳属高周热疲劳,其热疲劳性能取决于钢的热强性和热稳定性。随着V/C增加,热疲劳抗力先增后减,当V/C比为3.0时,组织中析出了细小弥散的VC,改善了钢的热强性和热稳定性,热疲劳抗力最高。铸造热作模具钢的热疲劳性能明显高于H13钢。
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| 关 键 词： | 铸钢 热作模具 热疲劳 |
| 文章编号： | 1001-4977(2007)03-0251-04 |
| 修稿时间： | 2006-10-09 |
Effect of W/C on Thermal Fatigue Property of the Cast Hot-Work Die Steel |
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| WANG Juan,WANG Shu-qi,CUI Xiang-hong,WANG Feng.Effect of W/C on Thermal Fatigue Property of the Cast Hot-Work Die Steel[J].Foundry,2007,56(3):251-254. |
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| Authors: | WANG Juan WANG Shu-qi CUI Xiang-hong WANG Feng |
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| Affiliation: | 1. College of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China; 2. College of Materials Science and Engineering, Jilin University, Changchun 130022, Jilin, China |
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| Abstract: | Thermal fatigue property of the cast hot-work die steels with different V/C was investigated with the self-restricting test method. The thermal fatigue behavior of the cast hot-work die steel and H13 steel was also contrasted. The results indicate that the thermal fatigue of the cast hot-work die steel is high-cycle thermal fatigue, therefore the main factor affecting thermal fatigue resistance is thermal strength and thermal stability. With V/C rising, thermal fatigue resistance increases first and then decreases. As V/C is 3.0, thermal stability and thermal strength of the cast hot-work die steel are improved because of dispersed VC in the microstructure, thus thermal fatigue resistance reach maximum. It is found that the thermal fatigue property of the cast hot-work die steel is better than that of H13 steel. |
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| Keywords: | V/C |
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