用X射线衍射、内耗、电阻和透射电镜等方法研究了等原子NiTi合金在150℃以下的相变。实验结果表明,在40—50℃之间,合金开始发生两类可逆的相变:马氏体相变和R相变。马氏体具有单斜畸变B_(19)结构,R相具有畸变B_2结构。R相变不是预转变,在-185℃,R相仍保持相对的稳定。 在等原子NiTi合金中,相变依下列次序进行: β(?)β+R+M(B_(19))(?)R+M(B_(19))。
The transformation of the equal atom Ni-Ti shape menory alloy has been studied at 150℃ by means of X-ray diffraction, internal friction, electric resistance and TEM. It was shown that two kinds of phase transformation, namely, of the martensite and the R-phase in the alloy are done between 40-50℃. The structure of martensite and of R-phase is distorted monoclinic B_(19) and B_2 respectively. The Rphase does not reveal a pre-transformation and remains relative stable till -185℃. Thus, the phase transformation in an equal atom Ni-Ti alloy takes place as:β(?)β+R+M(B_(19))(?)R+M(B_(19)).
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] | |
| [16] | |
| [17] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%