为了研究掺杂合金化对金属Ti性能的影响,采用磁悬浮熔炼法制备了TiHf_x(x=0.13、0.26、0.52、1.03)合金.成分分析表明,合金成分均一,Ti因饱和蒸气压高于Hf和化学清洗而有0.6%～2.6%的质量损失.形貌分析显示,除TiHf_(1.03)外,其余组分合金为层状结晶.Hf掺杂显著增大了Ti基体的晶格体积,但合金保持了Ti基体的α相,无杂相生成.合金晶胞参数与组分的关系正偏离于线性,随Hf含量的增加,偏移量呈增大趋势.
TiHf_x(X=0.13,0.26,0.52,1.03) is prepared on electromagnetic levitation melting system for enhancing the ability of hydrogen storage in the titanium metal.The homogeneity of the alloys is proven by ICP-AES analysis,but the proportion of the titanium in the alloys is 0.6%～2.6% less than the added amount because the titanium has a higher saturated vapor pressure than the hafnium at the same temperature.The crystal stratification is found by SEM in the majority of the alloys except for the TiHf_(1.03).The cell volume of the alloys expands with the doping hafnium,however,the α phase of the titanium basement is reserved in the alloys without any other phase.The dependence of the lattice parameter on the component of the alloys doesn't obey linearity,the deviation increasing with a larger Hf/Ti.
参考文献
| [1] | 罗顺忠,杨本福,龙兴贵.中子发生器用氚靶的研究进展[J].原子能科学技术,2002(04):290-296. |
| [2] | 万竟平,彭述明,龙兴贵,杨本福.Ti-V合金及其氢化物结构的研究[J].材料导报,2006(z2):451-454. |
| [3] | 郑华,刘实,赵越,王隆保.Ti-10Mo双相合金的吸氢性能[J].金属学报,2003(05):526-529. |
| [4] | Yang R;Wang Y M;Zhao Y et al.Transition metal alloying efecton chemical bonding in TiH_2[J].Acta Materialia,2002,50:109. |
| [5] | Libowitz G G;Maeland A J .Interactions of hydrogen with metallic glass alloys[J].Journal of the Less-Common Metals,1984,101:131. |
| [6] | 赵越,郑华,刘实,杨锐,王隆保.Ti-Mo合金的结构及吸放氢性能研究[J].金属学报,2003(01):89-93. |
| [7] | 郑华,于洪波,刘实,王隆保.Ti87.5Hf12.5合金的贮氢性能[J].原子能科学技术,2005(04):367-371. |
| [8] | 余宗森.金属物理[M].北京:冶金工业出版社,1982 |
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