| 超高硬度堆焊材料的硬度及耐磨性 |
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| 引用本文： | 王宝森,李午申,冯灵芝.超高硬度堆焊材料的硬度及耐磨性[J].焊接学报,2003,24(1):1-4. |
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| 作者姓名： | 王宝森 李午申 冯灵芝 |
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| 作者单位： | 天津大学,材料科学与工程学院,天津,300072 |
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| 基金项目： | 天津市自然科学基金资助项目 ( 0 136 0 4911) |
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| 摘 要： | 通过在堆敷合金系统中添加多种强碳化物形成元素，在焊接热循环作用下或随后的回火过程中以弥散碳化物形式析出。弥散碳化物的析出既可以在强化堆敷金属的同时，提高堆敷层抗磨损的能力，又可以降低基体组织中的碳含量，增加基体的韧性。利用上述思想，以C、Cr、Mo、W、V作为基础合金系统，采用二次旋转回归设计方法设计试验方案，建立了超高硬度堆敷金属的硬度、耐磨性与合金元素间的数学模型，并研究了药芯焊丝中合金元素对堆敷金属硬度及耐磨性的定量影响规律。
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| 关 键 词： | 堆焊 硬度 耐磨性 焊接材料 弥散碳化物 耐磨性 药芯焊丝 |
| 文章编号： | 0253-360X(2003)01-01-04 |
| 收稿时间： | 2002/8/22 0:00:00 |
| 修稿时间： | 2002年8月22日 |
Quantitative study on hardness and wear-resistance of ultra-high hardfacing materials |
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| WANG Bao-sen,LI Wu-shen and FENG Ling-zhi.Quantitative study on hardness and wear-resistance of ultra-high hardfacing materials[J].Transactions of The China Welding Institution,2003,24(1):1-4. |
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| Authors: | WANG Bao-sen LI Wu-shen and FENG Ling-zhi |
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| Affiliation: | School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China,School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Though adding various-strong carbide formotion elements into surfacing alloy system,intergranular precipitation carbide that alloy elements combine with carbon can be formed under following welding thermal cycle or tempering.Those precipitated carbide are not only improving strengthen and increasing wear-resistance ability of surfacing deposited metal,but also enhancing matrix toughness by decreasing carbon content in matrix .Baset on these viewpoints,base alloy system is established with C-Cr-Mo-W-V.Mathematic model on hardness and wear-resistance of ultra-high hardfacing deposited metal with alloying elements is established by quadratic rotary regress optimum design technology,and quantitative influencing rule of alloying element in flux cored wires on surfacing hardness and wear-resistance is also studied. |
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| Keywords: | surfacing materials ultra-high hardness wear-resis-rance precipitated carbide |
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