研究了1种新型的亚稳定β钛合金(Ti-B20)在不同热处理制度下的显微组织与拉伸和冲击性能.结果表明,热处理制度的改变能显著影响该合金的显微组织和强化行为.固溶温度是影响合金时效后塑性的首要因素,而时效温度是影响强度的主要原因.时效温度降低,析出相更加细小,因此合金强度升高.而粗大的晶粒及连续的晶界容易产生应力集中,因此合金经β固溶时效后具有较低的塑性和冲击值.通过在β相变点下固溶,然后在550℃-600℃之间合适的温度下时效处理,可以获得强度,塑性和冲击韧性的良好配合.
参考文献
| [1] | Bania P J.Beta Titanium Alloys and Their Role in the Titan- ium Industry[A].Warrendale:TMS,1993:3-14. |
| [2] | Brewer WD.;Wallace TA.;Bird RK. .Titanium alloys and processing for high speed aircraft[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):299-304. |
| [3] | Terlinde G;Fischer G.Beta Titanium Alloys[A].London: Institute of Materials,1995:2177-2193. |
| [4] | 葛鹏;赵永庆;周廉 et al.A Type of High Strength and High Impact Toughness Titanium Alloy[P].China National Defense Patent: Applica- tion Number: 02101192.3 |
| [5] | Alain Vassel.Microstructural Instabilities in Beta Titanium Alloys[A].Warrendale,1993:173-185. |
| [6] | Porter W J;Eylon D.Effect of HIP and Heat Treatment on Fatigur Initiation and Tensile Failure in Ti-15V-3Cr-3Al Castings[A].TMS,Warrendale,1993:273-281. |
| [7] | Terlinde G T;Duerig T W;Williams J C .Microstructure, Tensile Deformation and Fracture in Aged Ti-10V-2Fe-3Al[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1983,14:2101-2115. |
| [8] | Allen P G;Bania P J.The Effect of Residual Work on the Aging Response of Beta Alloys[A].TMS,Warrendale,1996:233-240. |
| [9] | Ikeda M.;Sugimoto T.;Hasegawa M.;Komatsu S. .Effect of two phase warm rolling on aging behavior and mechanical properties of Ti-15Mo-5Zr-3Al alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):140-145. |
| [10] | 徐祖耀;李鹏兴.Introduction of Materials Science[M].上海:上海科学技术出版社,1986:598-608. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%