陈峰,闫志巧,许荣君,刘彬,林国亮.摩托车发动机用Ti-Al-Fe-Mo气门的制备及性能表征[J].稀有金属材料与工程,2019,48(10):3297~3301.[Chen Feng,Yan Zhiqiao,Xu Rongjun,Liu Bin,Lin Guoliang.Preparation and properties characterization of Ti-Al-Fe-Mo valves for motorcycle engines[J].Rare Metal Materials and Engineering,2019,48(10):3297~3301.]
摩托车发动机用Ti-Al-Fe-Mo气门的制备及性能表征
投稿时间:2018-07-26  修订日期:2018-08-17
中文关键词:  钛合金  Ti-Al-Fe-Mo  元素混合法  粉末冶金  气门
基金项目:国家自然科学基金资助(51404077);广州市对外科技合作专项(201508030032);广东省自然科学基金 (2015A030313775);广东省科学院实施创新驱动发展能力建设专项(2017GDASCX-0117、2018GDASCX-0117);广东省公益研究与能力建设专项(2017A070702019);广州市科技计划项目(ZWY201704003);广东省材料与加工研究所创新能力建设项目(2017A070701029)
中文摘要:
      以Ti粉和Al、Fe、Mo等元素粉末为原料,采用粉末冶金工艺制备了Ti-Al-Fe-Mo合金,并最终制成摩托车发动机用钛气门,研究了钛合金制备过程中的组织和性能演变规律,考察了钛气门的装机试验使用效果。结果表明,采用粉末冶金工艺制备的Ti-Al-Fe-Mo合金具有优良的综合性能,其抗拉强度为1232 MPa,屈服强度为1186 MPa,延伸率为6.5 %,硬度为49 HRC。在钛合金表面涂覆TiN硬质耐磨涂层后,制成的钛气门可满足摩托车发动机的装机测试要求。与使用钢制气门相比,使用钛气门可以使发动机的功率和扭矩提高约12%,油耗降低1%,并显著降低噪音。
Preparation and properties characterization of Ti-Al-Fe-Mo valves for motorcycle engines
英文关键词:titanium alloys  Ti- Al-Fe-Mo  blended elemental  powder metallurgy  valves
英文摘要:
      Ti-Al-Fe-Mo alloy was prepared by powder metallurgy method with titanium, aluminum, molybdenum and iron powders used as raw materials, and the alloy was used to fabricate valves for motorcycle engines. The microstructure as well as performance evolution of the alloy during the preparing process was investigated. The performances of motorcycle engines assembled with Ti valves were also tested. The results show that Ti-Al-Fe-Mo alloy prepared by powder metallurgy has excellent comprehensive performances with ultimate tensile strength 1232 MPa, yield strength 1186 MPa, elongation 6.5% and hardness 49 HRC. The fabricated valves after coating TiN can meet the requirement of on board tests of the motorcycle engine. Compared with assembling steel valves, power and torque of the motorcycle engines assembled with Ti valves are improved by about 12%, fuel consumption rate is reduced by 1% and the noise is also significantly lowered.
作者单位E-mail
陈峰 广东省科学院 广东省材料与加工研究所 chenfengcsu@163.com 
闫志巧 广东省科学院 广东省材料与加工研究所 zhiqiaoyan@163.com 
许荣君 广东省科学院 广东省材料与加工研究所  
刘彬 中南大学  
林国亮 江门天钇金属工业有限公司  
摘要点击次数: 47
全文下载次数: 11
查看全文  查看/发表评论  
关闭