| 热变形低铬白口铸铁颗粒状碳化物形成的探讨 |
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| 引用本文： | 刘建华,邵光杰,王海燕,王爱荣. 热变形低铬白口铸铁颗粒状碳化物形成的探讨[J]. 上海金属, 2001, 23(5): 17-20 |
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| 作者姓名： | 刘建华 邵光杰 王海燕 王爱荣 |
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| 作者单位： | 刘建华（燕山大学,秦皇岛市,066004） 邵光杰（燕山大学,秦皇岛市,066004） 王海燕（燕山大学,秦皇岛市,066004） 王爱荣（燕山大学,秦皇岛市,066004） |
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| 摘 要： | 通过金相显微镜和扫描电镜的观察，探讨了热变形低铬白口铸铁中颗粒状碳化物的形成，分析认为：尺寸较大的碳化物来源于铸态中棒状碳化物；尺寸较小的碳化物直接从基体中形核；尺寸介于两者之间的来自热变形诱发析出，且变形量越大则细小的颗粒状碳化物数量越多。
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| 关 键 词： | 热变形 低铬白口铸铁 颗粒状碳化物 析出 |
STUDY ON THE FORMATION OF GRANULAR CARBIDES IN LOW CHROMIUM WHITE CAST IRON THROUGH HOT DEFORMATION |
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| Liu Jianhua Shao Guangjie Wang Haiyan Wang Airong. STUDY ON THE FORMATION OF GRANULAR CARBIDES IN LOW CHROMIUM WHITE CAST IRON THROUGH HOT DEFORMATION[J]. Shanghai Metals, 2001, 23(5): 17-20 |
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| Authors: | Liu Jianhua Shao Guangjie Wang Haiyan Wang Airong |
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| Affiliation: | Yanshan University |
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| Abstract: | The granular carbides formed by hot deformation in low chromium white cast iron were studied through the observation with optical microscope and scanning electron microscopy.The experimental results showed that carbides of large size formed from bar like shape carbides,those of small size directly nucleated in the matrix,while the carbides with the sizes between the above mentioned formed from precipitation induced by hot deformation.The heavier the deformation was,the larger the number of microsized granular carbides was. |
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| Keywords: | Hot Deformation Low Chromium White Cast lron Granular Carbide Precipitation |
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