| 湿润环境下球墨铸铁的脆化现象 |
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| 引用本文： | 徐志胜,赵丕峰,赵玉剑.湿润环境下球墨铸铁的脆化现象[J].铸造技术,2000(5):40-43. |
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| 作者姓名： | 徐志胜 赵丕峰 赵玉剑 |
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| 作者单位： | 徐志胜（焦作工学院机械系，河南焦作454000）
赵丕峰（焦作工学院机械系，河南焦作454000）
赵玉剑（河南省煤炭技工学校 河南）
张复宝（焦作市耐火材料厂，河南焦作454000） |
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| 基金项目： | 河南省教委自然科学基金资助(1999640004) |
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| 摘 要： | 主要对在水的环境下包括奥贝球铁在内的球墨铸铁的机械性能进行了试验研究，发现了球墨铸铁在湿润环境下的脆化现象；对湿润环境下球墨铸铁环境脆化现象的机理地行了分析研究，认为其起因是在塑性变形时水发生了分解，导致氢脆；提出了氢的发生模型。
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| 关 键 词： | 球墨铸铁 奥贝球铁 强度 延伸率 环境脆化 氢脆 |
| 文章编号： | 1000-8365(2000)05-0040-04 |
| 修稿时间： | 2000-01-18 |
Embrittlement of Ductile Iron Exposed to the Water Environment |
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| XU Zhi-sheng
,ZHAO Pi-feng
ZHAO Yu-jian
ZHANG Fu-bao.Embrittlement of Ductile Iron Exposed to the Water Environment[J].Foundry Technology,2000(5):40-43. |
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| Authors: | XU Zhi-sheng ZHAO Pi-feng
ZHAO Yu-jian
ZHANG Fu-bao |
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| Affiliation: | XU Zhi-sheng
,ZHAO Pi-feng
(Jiaozuo Polytechnical University,Jiaozuo 454000,China)ZHAO Yu-jian
(Henan Coal Technical School)ZHANG Fu-bao
(Jiaozuo Fire-resistant Material Plant,Jiaozuo 454000, China) |
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| Abstract: | The mechanical properties of ductile iron exposed to water has been investigated, and detailed information about the environmental embrittlement result from the exposure to water are found. The mechanism of that has also been studied in this paper. It is indicated that the enbrittlement is due to the hydrogen embrittlement caused by the decomposition of water during the plastic deformation. Further more, the model of the atomic hydrogen generation process is given in this paper. |
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| Keywords: | Ductile iron Austempered ductile iron Ultimate tensile strength Elongation Environmental embrittlement Hydrogen embrittlement |
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