Ti3Al基的Ti-24A1-14Nb-3V-0.5Mo(at%)合金为非理想的超塑材料.用超塑压缩方法研究了合金的超塑变形行为,分析了变形量和应变速率对流变应力及组织演变的影响.结果表明:所研究合金的最佳超塑变形温度为980 ℃.在980 ℃,2×10-3s-1的条件下,应变速率敏感性指数值为0.55.应变速率对合金超塑压缩时的力学行为和组织演变有显著的影响.
参考文献
| [1] | Barerjee A Dutta D .Superplastic Behavior in a Ti3Al-Nb Alloy[J].Scripta Metallurgica et Materialia,1990,24:1319. |
| [2] | Yang H S;Jin P;Daldev E .Superplasticity in Ti3Al-Based Alloy Stabilized by Nb,Vand Mo[J].Scripta Metallurgica et Materialia,1991,25:1223. |
| [3] | Yang H S;Zelin M G;Valiey R Z et al.Strain Induced Morphological Changes of α2 and β Phases in Ti3A1 Alloys During Superplastic Deformation[J].Scripta Metallurgica et Materialia,1992,26:1707-1712. |
| [4] | 王斌;贾天聪;王跃群 et al.Superplasticity of Ti-24Al-14Nb-3V-0.5Mo Alloy[J].金属学报,1994(30):B309. |
| [5] | 孙福生;马济民;曹春晓 et al.Microstructural Observation in Superplastic Deformation of a Ti 3Al-Based Alloy[J].金属学报,1994(30):B465. |
| [6] | 廉丕芬;朱世满;吴庆 et al.Superplastic Deformation and Its mechanism of Ti3Al-Based Alloy[J].钢铁研究学报,1997,9(09):68. |
| [7] | FU H C;Huang J C;Wang T D .Evolution of Microstruture and Superplastic Deformation Mechanism in Super a2Ti3Al[J].Acta Materialia,1998,46:465. |
| [8] | 刘玉文;刘文俊;刘林生 et al.A Study on Superplastic Deformation Mechanism in LC9 Alloy[J].金属科学与工艺,1986,5(02):31. |
| [9] | 张荻,覃继宁,施幸华.热轧态TiAl基金属间化合物超塑性变形的组织研究[J].稀有金属材料与工程,1998(04):210-214. |
| [10] | 姚祖斌.供应态HPb59-1黄铜超塑性压缩的试验研究[J].热加工工艺,1993(01):5. |
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%