期刊文献+

K4208高温合金中析出相的表征

Characterization of the precipitated phases inK4208 high temperature alloy
在线阅读 下载PDF
收藏 分享 导出
摘要 K4208高温合金中W、Mo含量比较高,通常会形成碳化物和金属间相。为了对K4208高温合金中析出相做定性定量分析,通过实验选择了合适的电解条件:电解液为10g/L氯化锂-40g/L磺基水杨酸-5%(V/V)甘油甲醇溶液,电流密度为0.04~0.06A/cm2,电解温度为0~-5℃。采用电解萃取方法将析出相从合金基体中分离,研究了析出相的分离方法,将碳化物溶解,得到了单独新相。通过X射线衍射(XRD)测定了析出相的点阵常数,用X射线小角散射法测定析出相的粒度分布。采用扫描电镜(SEM)研究了析出相的形貌和元素组成,用电感耦合等离子体原子发射光谱法(ICP-AES)测定了析出相中各元素含量及析出相总量。结果表明:电解条件对析出相的萃取量影响明显,K4208高温合金中有新相、γ′、M6C和M12C这4种析出相。新相的稳定性比较高,不溶于6%(V/V)H2SO4-20%(V/V)H2O2溶液和20%(V/V)HCl乙醇溶液,在50%(V/V)H2SO4中部分溶解。M6C和M12C相呈块状,粒径相对较小,混合相的平均粒径为170.7nm;新相呈片状,颗粒粗大,平均粒径为216.6nm。 The contents of W and Mo in K4208 high temperature alloy are relatively high.The carbide and intermetallic phases are usually formed.In order to qualitatively and quantitatively analyze the precipitated phases in K4208 high temperature alloy,the proper electrolytic conditions were selected in experiments:the electrolyte was 10 g/L lithium chloride-40 g/L sulfosalicylic acid-5%(V/V)glycerol methanol solution;the current density was 0.04-0.06 A/cm^2;the electrolysis temperature was between 0℃ and -5℃.The precipitated phases were separated from alloy matrix by electrolytic extraction method.The separation methods of precipitated phases were studied.The carbides were dissolved and the single new phase was obtained.The lattice constant of precipitated phases was measured by X-ray diffraction(XRD).The size distribution of precipitated phases was measured by X-ray small angle scattering method.The morphology and element composition were analyzed by scanning electron microscope(SEM).The elemental content and total content of precipitated phases were determined by inductively coupled plasma atomic emission spectrometry(ICP-AES).The results showed that the extraction amount of precipitated phases was significantly affected by the electrolytic conditions.The K4208 high temperature alloy contained four precipitated phases,i.e.,new phase,γ′phase,M6C phase and M12C phase.The stability of new phase was high and it was insoluble in 6%(V/V)H 2SO 4-20%(V/V)H2O2 solution and 20%(V/V)HCl ethanol solution,and partially dissolved in 50%(V/V)H2SO4.M6C phase and M12C phase were blocky with relatively small particle size.The average particle size of mixed phase was 170.7 nm.The new phase was lamellar with large particles,and the average particle size was 216.6 nm.
作者 李玲霞 吴赵波 江河 李南 李继康 LI Ling-xia;WU Zhao-bo;JIANG He;LI Nan;LI Ji-kang(Central Iron and Steel Research Institute,Beijing 100081,China;University of Science and Technology Beijing,Beijing 100083,China)
出处 《冶金分析》 CAS 北大核心 2020年第1期33-39,共7页 Metallurgical Analysis
关键词 K4208高温合金 电解萃取 碳化物 析出相 物理化学相分析 X射线衍射 电感耦合等离子体原子发射光谱法(ICP-AES) 扫描电镜(SEM) K4208 high temperature alloy electrolytic extraction carbide precipitated phase physicochemical phase analysis X-ray diffraction(XRD) inductively coupled plasma atomic emission spectrometry(ICP-AES) scanning electron microscope(SEM)
  • 相关文献

参考文献4

二级参考文献19

  • 1贾志华,马光,郑晶,王轶,李银娥.钴-铬-钨合金焊丝的制备及性能[J].机械工程材料,2007(11):24-25. 被引量:1
  • 2蔡振兵,朱旻昊,刘军,徐轶,俞佳,周仲荣.激光熔覆Ni60和Co-Cr-W合金层的高温磨损特性研究[J].润滑与密封,2006(4):26-28. 被引量:8
  • 3Contu F, Elsener B, Bohni H. Corrosion behaviour of CoCrMo implant alloy during fretting in bovine serum [J].Corrosion Science, 2005, 47(8):1863-1875. 被引量:1
  • 4Yan Y, Neville A, Dowson D. Biotriboeorrosion of CoCrMo orthopaedic implant materials-assessing the formation and effect of the biofilm[J]. Tribology International, 2007, 40(10-12) : 1492-1499. 被引量:1
  • 5Akihiko Chiba, Naoyuki Nomura, Yoshiki Ono. Microstructure and mechanical properties of biomedical Co-29Cr-8Mo alloy wire fabricated by a modified melt-spinning process[J]. Acta Materialia, 2007, 55(6), 2119-2128 被引量:1
  • 6Munir Z A. Synthesis of High-Temperature Materialsby Self-Propagating Combustion Methods[J]. Ceramic Buletin, 1998, 667(2): 342--349. 被引量:1
  • 7Song C B, Park H B, Seong H G,etal. Development of athermal ε-martensite in atomized Co-Cr-Mo-C implant alloy powders[J]. Acta Biomaterialia, 2006, 2(6): 685-691. 被引量:1
  • 8Li BY, Mukasyan A, Varma A. Combustion synthesis of CoCrMo orthopedic implant alloys: microstructure and properties[J]. Materials Research Innovations, 2003, 7(4): 245-252. 被引量:1
  • 9《航空发动机设计手册》总编委会.航空发动机设计手册第10册:涡轮[M].北京:航空工业出版社,2001. 被引量:2
  • 10长崎诚山,林平真.二元合金状态图集[M].刘安生译.北京:冶金工业出版社,2004. 被引量:2

共引文献1

论文智能改写系统
维普数据出版直通车
投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈