采用粉末冶金方法制备Mo-Ti合金,研究合金元素添加方式及添加量对材料拉伸强度和显微组织的影响.结果表明,添加TiH2粉末所制备的合金的拉伸强度及相对密度均较添加纯Ti粉末的合金高,当添加量(质量分数)为0.8%时合金拉伸强度最高.显微组织分析结果表明,一部分Ti固溶到Mo基体,提高材料的拉伸强度,另一部分则与Mo及合金中的氧结合形成MoxTiyOz复合氧化物第二相粒子,起到细化晶粒及净化晶界的作用.
参考文献
| [1] | 曹维成,刘静,任宜霞.掺杂不同微量元素对钼材性能的影响[J].稀有金属快报,2006(08):29-32. |
| [2] | 向铁根.钼冶金[M].长沙:中南大学出版社,2002 |
| [3] | 张启修;赵秦生.钨钼合金[M].北京:冶金工业出版社,2005 |
| [4] | T. Mrotzek;A. Hoffmann;U. Martin .Hardening mechanisms and recrystallization behaviour of several molybdenum alloys[J].International Journal of Refractory Metals & Hard Materials,2006(4):298-305. |
| [5] | NAGAE M;TAKEMOTO Y;YOSHIO T;TAKADA J HIRAOKA Y .Preparation of structurally controlled dilute molybdenum-titanium alloy through a novel multi-step internal nitriding technique and their mechanical properties[J].Materials Science and Engineering A,2005,406:50-56. |
| [6] | YUTAKA HIRAOKA;SATORU YOSHIMURA .Low Temperature Fracture Strength and Ductility of Carburized Mo-Ti Alloys[J].International Journal of Refractory Metals & Hard Materials,1995(4):205-210. |
| [7] | Takeshi Inoue;Yutaka Hiraoka;Ei-ichi Sukedai .Hardening behavior of dilute Mo-Ti alloys by two-step heat-treatment[J].International Journal of Refractory Metals & Hard Materials,2007(2):138-143. |
| [8] | B.V. COCKERAM .Measuring the Fracture Toughness of Molybdenum-0.5 pct Titanium-0.1 pct Zirconium and Oxide Dispersion-Strengthened Molybdenum Alloys using Standard and Subsized Bend Specimens[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(12):3685-3707. |
| [9] | I.G. Sharma;S.P. Chakraborty;A.K. Suri .Preparation of TZM alloy by aluminothermic smelting and its characterization[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2005(1/2):122-128. |
| [10] | B.V. Cockeram .The mechanical properties and fracture mechanisms of wrought low carbon arc cast (LCAC), molybdenum-0.5pct titanium-0.1pct zirconium (TZM), and oxide dispersion strengthened (ODS) molybdenum flat products[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1/2):120-136. |
| [11] | 张军良,郑欣,张清,李中奎.MO-Ti-Zr合金挤压破裂问题研究[J].稀有金属快报,2004(04):31-32. |
| [12] | KADOKURA T;HIRAOKA Y;NAKABAYASHI S;YAMAMOTO Y.Effects of sintering conditions on the properties of sintered molybdenum[J].Powder Metallurgy,2006:1153-1154. |
| [13] | 胡赓祥;蔡珣.材料科学基础[M].上海:上海交通大学出版社,2005 |
| [14] | 莫尔古诺娃H H.钼冶金[M].北京:冶金工业出版社,1984 |
| [15] | 李玉清;刘锦岩.高温合金晶界间隙相[M].北京:冶金工业出版社,1990 |
| [16] | 张久兴,刘燕琴,刘丹敏,周美玲,左铁镛.微量La2O3对钼的韧化作用[J].中国有色金属学报,2004(01):13-17. |
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