x高熵合金-TiN陶瓷涂層復(fù)合材料的聯(lián)合工藝（熔鹽電脫氧+真空熱壓燒結(jié)），其中氮化物來自石墨模具和高熵合金粉末之間的BN隔離劑。探究了Ti含量對材料顯微組織、極限抗拉伸強度、硬度和耐磨性能的影響，并對其結(jié)合機理進行了探究。結(jié)果表明，該復(fù)合材料具有優(yōu)異的硬度和耐磨性能。隨著Ti含量的增加，涂層復(fù)合材料的硬度顯著提高。極高的耐磨性能是由于TiN的極高熔點和高熱硬度能夠有效防止磨損表面的氧化變形。"/>

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聯(lián)合工藝制備鋼表面高熵合金-陶瓷涂層復(fù)合材料及其力學性能
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1.華北理工大學 冶金與能源學院 現(xiàn)代冶金技術(shù)教育部重點實驗室，河北 唐山 063210;2.華北理工大學 機械工程學院，河北 唐山 063210;3.華北理工大學 綜合測試分析中心，河北 唐山 063210

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基金項目:

國家自然科學基金項目（面上項目，重點項目，重大項目）；華北理工大學青年人才托舉計劃項目資助


Preparation of High-Entropy Alloy-Ceramic Coating Compos-ites on Steel Surfaces by Combined Process and Their Mechanical Properties
Author:
Affiliation:

1.Key Laboratory of Modern Metallurgy Technology, Ministry of Education, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China;2.School of Mechanical Engineering, North China University of Technology, Tangshan 063210, China;3.Comprehensive Testing and Analyzing Center, North China University of Science and Technology, Tangshan 063210, China

Fund Project:

National Natural Science Foundation of China (52174315); Youth Scholars Promotion Plan of North China University of Science and Technology (QNTJ202304)

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    摘要:

    提出了一種制備低碳鋼表面AlCrFeNiTix高熵合金-TiN陶瓷涂層復(fù)合材料的聯(lián)合工藝（熔鹽電脫氧+真空熱壓燒結(jié)），其中氮化物來自石墨模具和高熵合金粉末之間的BN隔離劑。探究了Ti含量對材料顯微組織、極限抗拉伸強度、硬度和耐磨性能的影響，并對其結(jié)合機理進行了探究。結(jié)果表明，該復(fù)合材料具有優(yōu)異的硬度和耐磨性能。隨著Ti含量的增加，涂層復(fù)合材料的硬度顯著提高。極高的耐磨性能是由于TiN的極高熔點和高熱硬度能夠有效防止磨損表面的氧化變形。

    Abstract:

    A combined process of molten salt electro-deoxidation and vacuum hot-pressing sintering was proposed to prepare AlCrFeNiTix high-entropy alloy (HEA)-TiN ceramic coating composites on low-carbon steel surfaces, where nitrides were introduced from BN isolater between graphite mold and HEA powders. The effect of Ti content on the microstructure, ultimate tensile strength, hardness, and wear resistance of the composites was investigated, and the bonding mechanism was elucidated. Results demonstrate that the composites have excellent hardness and wear resistance. The hardness of composites is significantly increased with the increase in Ti content. The extremely high wear resistance is attributed to the extremely high melting point and high thermal hardness of TiN, which can effectively prevent oxidation deformation of the worn surface.

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李慧,陳庚,張勝,梁精龍,霍東興,楊宇.聯(lián)合工藝制備鋼表面高熵合金-陶瓷涂層復(fù)合材料及其力學性能[J].稀有金屬材料與工程,2024,53(10):2735~2746.[Li Hui, Chen Geng, Zhang Sheng, Liang Jinglong, Huo Dongxing, Yang Yu. Preparation of High-Entropy Alloy-Ceramic Coating Compos-ites on Steel Surfaces by Combined Process and Their Mechanical Properties[J]. Rare Metal Materials and Engineering,2024,53(10):2735~2746.]
DOI：10.12442/j. issn.1002-185X. E20240311

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  • 收稿日期:2024-05-24
  • 最后修改日期:2024-07-01
  • 錄用日期:2024-07-10
  • 在線發(fā)布日期: 2024-09-27
  • 出版日期: 2024-09-27