【正文】 i 鄭州大學(xué)畢業(yè)設(shè)計(jì)（論文） 題 目： 高鉻鑄鐵高頻堆焊工藝及性能的研究 Research on Property of High Chromium Cast Iron Produced with Highfrequency Compounding 指導(dǎo)教師： XXX 職稱： 教授 學(xué)生姓名： 學(xué)號(hào)： 專 業(yè)： 材料成型及控制工程 院（系） ： 材料科學(xué)與工程 學(xué)院 完成時(shí)間： 2021 年 5 月 30 日 ii 摘 要 在機(jī)械零件磨損中，磨料磨損占了很大比重。 采用 高頻感應(yīng)堆焊工藝在普通碳素結(jié)構(gòu)鋼母材上堆焊一層 2～ 3mm 厚的高鉻鑄鐵耐磨層 ，可以同時(shí)具備兩種材料的優(yōu)點(diǎn)，滿足零件對(duì)韌性和耐磨性的要求。本文 主要 對(duì) 亞共晶、共晶、過(guò)共晶 高鉻鑄鐵 組織 進(jìn)行金相分析，并測(cè)量堆焊層 的硬度 ，研究分析了不同的高鉻鑄鐵組織與耐磨性的關(guān)系。實(shí)驗(yàn)得出，與亞共晶、共晶組織的高鉻鑄鐵相比，過(guò)共晶高鉻鑄鐵具有更好的抗磨料磨損性能。 關(guān)鍵詞 ： 高頻堆焊 ； 高鉻鑄鐵 ； 耐磨 ii Abstract In the mechanical parts wearing, Abrasion has been a large proportion. Wearingresisting lay of high chromium cast iron was pounded on the low carbon steel plate with Highfrequency pounding methods. At the same time that can have the advantage of two materials, meet the requirements of toughness and Wearability of parts. This article process metallographic analysis of the high chromium cast iron with different position, and measure the hardness of surfacing, analysis the relations between different position of high chromium cast iron and Wearability. The results show that the Hyperectectic high chromium cast iron have Excellent Wearability pare with thehypoeutectic and Eutectic high chromium cast iron. Keywords: Highfrequency pounding 。 high chromium cast iron 。 wearresist I 目錄 摘 要 ............................................................................................................................................. i Abstract ..........................................................................................................................................ii 1 概述 ............................................................................................................................................ 1 研究的目的及意義 ............................................................................................................. 1 各種堆焊方法的比較 ......................................................................................................... 1 手工電弧堆焊 ............................................................................................................... 2 氧 乙炔焰堆焊 .............................................................................................................. 2 自動(dòng)埋弧堆焊 ............................................................................................................... 2 氣體保護(hù)電弧堆焊 ....................................................................................................... 3 等離子弧堆焊 ............................................................................................................... 3 高頻感應(yīng)堆焊 ............................................................................................................... 4 堆焊的應(yīng)用現(xiàn)狀及前景 ..................................................................................................... 4 研究目標(biāo)和研究?jī)?nèi)容 ......................................................................................................... 5 2 實(shí)驗(yàn)過(guò)程 .................................................................................................................................... 7 實(shí)驗(yàn)材料的選取 ................................................................................................................. 7 實(shí)驗(yàn)材料的選取依據(jù) ................................................................................................... 7 母材的選取 ................................................................................................................... 7 高鉻 鑄鐵成分的選取 ................................................................................................... 7 焊劑的選用 ................................................................................................................... 8 試驗(yàn)?zāi)康?、方法及步驟 ..................................................................................................... 9 試驗(yàn)?zāi)康募胺椒? ........................................................................................................... 9 實(shí)驗(yàn)設(shè)備及材料 ........................................................................................................... 9 實(shí)驗(yàn)步 驟 ....................................................................................................................... 9 3. 實(shí)驗(yàn)結(jié)果與討論 ..................................................................................................................... 11 母材組織分析 ................................................................................................................... 11 復(fù)合層化學(xué)成分和硬度關(guān)系的分析 ............................................................................... 12 4 結(jié)論 .......................................................................................................................................... 17 參考文獻(xiàn) ...................................................................................................................................... 18 附件 1 ........................................................................................................................................... 18 附件 2 ........................................................................................................................................... 20 附件 3 ........................................................................................................................................... 21 附件 4 ........................................................................................................................................... 22 附件 5 ........................................................................................................................................... 23 外文翻譯 ........................................