贾磊,杨明芳,陈江先,吕振林,近藤勝義,谢辉.以稻壳为强化原料制备低成本钛合金的摩擦学性能[J].稀有金属材料与工程,2020,49(10):3309~3313.[Lei Jia,Ming-fang Yang,Jiang-xian Chen,Zhen-lin Lu,Katsuyoshi Kondoh,Hui Xie.Tribological properties of low-cost titanium alloys by using rice husk as reinforcement[J].Rare Metal Materials and Engineering,2020,49(10):3309~3313.]
以稻壳为强化原料制备低成本钛合金的摩擦学性能
投稿时间:2019-08-22  修订日期:2019-10-17
中文关键词:  低成本钛合金  稻壳分解物SiO[sub_s]2[sub_e]  摩擦学性能  磨损机制
基金项目:国家自然科学基金项目(51601143);陕西省科技厅国际合作交流项目(2017KW-021);陕西省教育厅重点研究计划项目(17JS082);河南科技大学高端轴承摩擦学国家地方联合工程中心开放课题(201801)
中文摘要:
      以稻壳热解产物为SiO2源,通过粉末冶金法制备了Si和O固溶强化的低成本钛合金,并从磨损率、磨损表面形貌和磨屑成分等角度系统研究了其摩擦学性能和磨损机理。结果表明,随着SiO2加入量的增加,Ti合金的体积磨损率显著降低,与硬度的变化规律吻合良好,同时磨损表面有三处变化,即犁沟的深度变浅、塑性变形程度降低和磨屑的尺寸变小和数量减少。SiO2的加入使磨损机制从纯Ti的粘着和磨料磨损转变为磨料和氧化磨损,而磨屑尺寸的减小可归因于GCr15球和钛基体反复摩擦,导致磨屑的脆化。本文提供了一种使用农业废稻壳生产具有优良综合性能的钛合金方法,在降低钛合金成本的同时也有益于生态环境的保护。
Tribological properties of low-cost titanium alloys by using rice husk as reinforcement
英文关键词:Low-cost Ti alloys  Rice husk SiO2  Tribology performance  Wear mechanism
英文摘要:
      Wear performance and mechanism of Ti alloys strengthened by solid solute atoms Si and O from rice husk was studied from the viewpoint of wear rate, worn surface morphology and wear debris analysis. Results show that the volume wear rate of Ti alloys decreases significantly with the increase of the content of SiO2, agreeing well with the change law of hardness. There are three changes of the worn surface with the increase of SiO2 content, one is the deep grooves transferring to shallow scratches, second is the decrease of plastic deformation degree and the last one is the size and amount of adhesive debris. The decrease of debris size can be attributed to the embrittlement of wear dust due to the blending of the wear dust of counter grinding GCr15 ball as well as the Ti matrix itself. Wear mechanism also transfers from adhesive and abrasive wear of pure Ti to abrasive and oxidation wear with the increase of SiO2 content. The result of this paper provides a cheap method to produce Ti alloys with excellent combination properties by using agricultural waste rice husk, which is also benefit for the environmental protection.
作者单位E-mail
贾磊 西安理工大学陕西省电工材料与熔渗技术重点实验室 xautjialei@163.com 
杨明芳 西安理工大学陕西省电工材料与熔渗技术重点实验室  
陈江先 西安理工大学陕西省电工材料与熔渗技术重点实验室  
吕振林 西安理工大学陕西省电工材料与熔渗技术重点实验室  
近藤勝義 大阪大学接合科学研究所  
谢辉 西安航空学院  
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