高级检索
汤文博, 郭云刚, 张亚伟, 王红锐. 含内生碳化物颗粒的堆焊合金组织与磨料磨损性能[J]. 焊接学报, 2010, (8): 73-76.
引用本文: 汤文博, 郭云刚, 张亚伟, 王红锐. 含内生碳化物颗粒的堆焊合金组织与磨料磨损性能[J]. 焊接学报, 2010, (8): 73-76.
shu
TANG Wenbo, GUO Yungang, ZHANG Yawei, WANG Hongrui. Microstructures and wear resistance of hardfacing alloy containing internally produced carbide particulates[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (8): 73-76.
Citation: TANG Wenbo, GUO Yungang, ZHANG Yawei, WANG Hongrui. Microstructures and wear resistance of hardfacing alloy containing internally produced carbide particulates[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (8): 73-76.
shu

含内生碳化物颗粒的堆焊合金组织与磨料磨损性能

Microstructures and wear resistance of hardfacing alloy containing internally produced carbide particulates

    摘要
  • 摘要: 文中通过焊条电弧焊在Q235钢板上堆焊获得一种新的含内生碳化物颗粒的堆焊合金,采用光谱仪、硬度计、光学显微镜、SEM和EDAX能谱分析对合金的化学成分、组织和硬度进行了研究,在销盘型磨损试验机上进行了磨料磨损试验.结果表明,研制成功的堆焊合金组织为混合型马氏体和少量残余奥氏体+弥散分布的一次(NbCrTi)C颗粒,且低碳马氏体和高碳马氏体数量相当,内生复合碳化物(NbCrTi)C增强相在基体中弥散分布,局部有偏聚;强韧结合的基体能联结和支撑增强相,硬度达57HRC,耐磨性达到碳化钨焊条D707的3.6倍.

     

    Abstract: A new hardfacing alloy was fabricated and deposited on the low-carbon steel Q235 by shielded manual arc welding.The average degree of hardness,microstructure and chemical composition of the alloy were analyzed with the hardness gauge,optical microscopy,scanning electron microscopy and the EDAX pattern,and the abrasive wear resistance of the alloy was also tested.The results show that the microstructure of the alloy is the mixed martensite and little retained austenite with(NbCrTi) C particles which are dispersive distributed in the matrix.The amount of low-carbon and high-carbon martensite is identical,and the hard carbides which have strong metallurgic bonding with the matrix are hold in the matrix effectively.The hardness of the alloy is up to 57 HRC,which is 3.6 times more wearable than that of D707 tungsten carbide electrode.

     

    • HTML全文
    • 参考文献(0)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回