王泽鹏,张红梅,付魁军,蒋健博,刘芳芳,王佳骥

• 1:辽宁科技大学材料与冶金学院
• 2:鞍钢技术中心

摘要(Abstract)：

研究了不同压下率热轧304L/Q235B复合板的复合界面的显微组织以及成分分布、剪切强度、显微硬度变化。结果表明,热轧不锈钢复合板复合界面由于C、Cr元素扩散,复合界面附近形成一定厚度的扩散层,且由于有碳化物的形成,扩散层的硬度增加,黑色带状区域为扩散层的一部分,在该区域边界,硬度达到峰值。复合界面处有黑色夹杂物形成,成分为Mn的硫化物和氧化物。碳钢侧组织为铁素体和珠光体,且随压下率增加,珠光体体积分数增加。在碳钢侧有脱碳层形成,随压下率增加,脱碳层厚度减小。复合板剪切强度随道次压下率的增加有所增加,并且剪切断口同时存在韧性断裂区域和脆性断裂区域,断裂发生在复合界面处。

关键词(KeyWords)： 复合板;扩散层;压下率;剪切强度;热轧

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51474127);; 辽宁省重点实验室开放课题(USTLKFSY201504)

作者(Author): 王泽鹏,张红梅,付魁军,蒋健博,刘芳芳,王佳骥

DOI: 10.13289/j.issn.1009-6264.2016.s1.009

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