INVESTIGATION ON THE EFFECT OF MARTENSITIC AND AUSTENITIC STRUCTURES ON TWO-WAY SHAPE MEMORY STRAIN VALUE IN NI-TI ALLOYS TRAINED UNDER BENDING

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BALAK Z.; ABASI S.M.

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Journal: Journal of Metallurgical and Materials Engineering Year:2010 | Volume:22 | Issue:1 Page(s): 47-56

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Title

INVESTIGATION ON THE EFFECT OF MARTENSITIC AND AUSTENITIC STRUCTURES ON TWO-WAY SHAPE MEMORY STRAIN VALUE IN NI-TI ALLOYS TRAINED UNDER BENDING

Author(s)

BALAK Z. | ABASI S.M. | Issue Writer Certificate

Keywords

NI-TI ALLOYQ3

TRAININGQ3

TWOQ3

WAY SHAPE MEMORY BEHAVIORQ3

INITIAL AUSTENITIC AND MARTENSITIC STRUCTURESQ3

Abstract

In this article, the influence of martensitic and austenitic structures on TWO-way shape memory strain in TWO NI-TI ALLOYs with 49.9 and 50.5 at% Ti trained by bending were investigated. The samples prepared with VIM (Vacuum Induction Melting) were trained in martensitic and austenitic conditions by applying bending deformation. The effects of pre-strain level and number of TRAINING cycles in martensitic and austenitic conditions were also studied. The results showed that the TWO-way shape memory strain in the Ni-rich alloy is greater than that of the Ti-rich alloy. In addition, it was observed that TRAINING the martensitic microstructure results in higher TWO-way shape memory strain when compared to the austenitic structure. The pre-strain values of 16.7 and 12.5 % and the optimum TRAINING cycles of 10-15 and 15-25 were obtained for the cases of martensitic and austenitic structures, respectively.

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APA: Copy

BALAK, Z., & ABASI, S.M.. (2010). INVESTIGATION ON THE EFFECT OF MARTENSITIC AND AUSTENITIC STRUCTURES ON TWO-WAY SHAPE MEMORY STRAIN VALUE IN NI-TI ALLOYS TRAINED UNDER BENDING. JOURNAL OF METALLURGICAL AND MATERIALS ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 22(1), 47-56. SID. https://sid.ir/paper/196068/en

Vancouver: Copy

BALAK Z., ABASI S.M.. INVESTIGATION ON THE EFFECT OF MARTENSITIC AND AUSTENITIC STRUCTURES ON TWO-WAY SHAPE MEMORY STRAIN VALUE IN NI-TI ALLOYS TRAINED UNDER BENDING. JOURNAL OF METALLURGICAL AND MATERIALS ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2010;22(1):47-56. Available from: https://sid.ir/paper/196068/en

IEEE: Copy

Z. BALAK, and S.M. ABASI, “INVESTIGATION ON THE EFFECT OF MARTENSITIC AND AUSTENITIC STRUCTURES ON TWO-WAY SHAPE MEMORY STRAIN VALUE IN NI-TI ALLOYS TRAINED UNDER BENDING,” JOURNAL OF METALLURGICAL AND MATERIALS ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 22, no. 1, pp. 47–56, 2010, [Online]. Available: https://sid.ir/paper/196068/en

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