Metastable effects on martensitic transformation in SMA - Part V. Fatigue-life and detailed hysteresis behavior in NiTi and Cu-based alloys

被引：20

作者：

Carreras, G. ^{[1
]}

Isalgue, A. ^{[1
]}

Torra, V. ^{[1
]}

Lovey, F. C. ^{[2
,3
]}

Soul, H. ^{[2
,3
]}

机构：

[1] UPC, ETSECCPB, CIRG, DFA, Barcelona 08034, Catalonia, Spain

[2] Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[3] Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 91卷 / 02期

关键词：

CuAlBe; dampers; damping; fatigue-life; frictional energy; martensitic phase transformation; NiTi; SMA;

D O I：

10.1007/s10973-007-8600-z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The fatigue-life (traction-traction only) is experimentally studied mainly for pseudoelastic NiTi wire of 2.46 mm of diameter for eventual application in damping of structures under wind or rain. Thermal effects are highly relevant in determining the fatigue-life. The results shows that the fracture level overcomes 130000 cycles when the moving air is used for cooling. When the number of working cycles overcomes 30000, the frictional energy decreases 40% vs. N roughly with an exponential behavior.

引用

页码：575 / 579

页数：5

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