Gil F J, Solano E, Peña J, Engel E, Mendoza A, Planell J A
CREB, Dept. de Ciència dels Materials i Enginyeria Metal.lúrgica, Universitat Politècnica de Catalunya, Diagonal 647, E-08028 Barcelona, Spain.
J Mater Sci Mater Med. 2004 Nov;15(11):1181-5. doi: 10.1007/s10856-004-5953-8.
Transformation temperatures and mechanical properties such as transformation stresses at different temperatures and the superelasticity have been investigated in NiTiCu alloys with various Copper concentrations. The results have been compared with the conventional NiTi alloys. The addition of copper was effective to narrow the stress hysteresis and to stabilize the superelasticity characteristics. Moreover, it produced greater stability on both the transformation temperatures and the forces applied to the different tissues. However, the studies of cell cultured with human fibroblasts showed certain toxicity.
已对具有不同铜浓度的镍钛铜合金的转变温度和力学性能(如不同温度下的转变应力和超弹性)进行了研究。研究结果已与传统镍钛合金进行了比较。添加铜有效地缩小了应力滞后并稳定了超弹性特性。此外,它在转变温度和施加于不同组织的力方面都产生了更大的稳定性。然而,用人成纤维细胞进行细胞培养的研究显示出一定的毒性。