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Microstructure evolution and superelasticity behavior of Ti-Ni-Hf shape memory alloy composite with multi-scale and heterogeneous reinforcementsXiaoyang Yi,Bin Sun,Weihong Gao,Xianglong Meng,Zhiyong... was introduced into the Ti-Ni-Hf shape memory alloy composite by the in-situ reaction of the Ti-Ni-Hf alloy powder and TiB2 powders.The(Ti,Hf)2 Ni phase also precipitated,accompanied with the formation......
NiTi形状记忆合金化学镀CoNiWP薄膜及磁性研究 王晋春1,程旭东1,张清杰1,李丹虹1,袁润章1,官建国1,程海斌1 (1.武汉理工大学,材料复合新技术国家重点实验室,湖北,武汉,430070) 摘要:采用化学镀法在NiTi形状记忆合金基体上镀覆CoNiWP磁性薄膜.用振动磁强计测试了样品的磁性能,结果表明NiTi形状记忆合金外层镀覆的金属薄膜是无定形结构并具有较好的磁性,其矫顽力是随化学镀进程逐渐增大到一定值后再逐渐下降.用扫描电镜表征镀层的形貌,结果表明化学镀开始初期,镀层颗粒比较细致,后来逐渐长大成晶胞状,当镀层完全覆盖基材后,再增加厚度会导致矫顽力下降. 关键词:化学镀; Co-Ni-W-P合金; Ni-Ti形状记忆合金; 磁性能; [全文内容正在添加中] ......
the aging process. Key words: shape memory alloy; aging; internal friction; explosive welding  ... alloy aged at different temperatures for 20 min vs strain amplitude at frequency of 1 Hz and room temperature 4 Conclusions 1) Two TiNi shape memory alloys with different chemical compositions......
, China) Abstract: The effects of annealing temperature, annealing time, aging temperature, and aging time on the transformation characteristics of Ti-50.2Ni (atomic percentage) shape memory alloy wire...→A, the one of 400 ℃ aged alloy changes from A→M/M→A to A→R→M/M→A, and the one of 500 ℃ aged alloy keeps as A→M/M→A. Key words: Ti-50.2Ni alloy; shape memory alloy; transformation......
treatment on the superelasticity and martensitic transformation critical stress in columnar-grained Cu71Al18Mn11 shape memory alloy(SMA) at the temperature ranging from 250°C to 400°C was investigated...Effects of aging treatment on the microstructure and superelasticity of columnar-grained Cu71Al18Mn11 shape memory alloyJi-li Liu1,2,Hai-you Huang1,Jian-xin Xie11. Beijing Laboratory of Metallic......
. Present status of research of superelastic NiTi shape memory alloy[J]. Shanghai Nonferrous Metals, 2003, 24(4): 170-174. [6] 李启全, 祁 珊. NiTi形状记忆合金超弹性的研究进展[J]. 国外金属热处理, 2003, 24(4): 5-9.LI Qi-quan, QI Shan. Research progress of superelastic NiTi shape memory alloy[J]. Heat Treatment of Metals Abroad, 2003, 24(4): 5-9. [7] 唐人剑, 秦桂红, 严 彪, NiTi形状记忆合金相变行为的影响因素[J]. 上海钢研, 2004(3): 24-27.TANG Ren-jian, QIN......
) Abstract: The shape memory effect of Cu-Al-Mn alloy with shape memory effect at Ms temperature of about 100 K was investigated by a self-made. XRD, OM and SEM were used to the microstructure of this alloy. The results show that only the peaks of β phase exist in the XRD patterns of Cu-Al-Mn alloy with good shape memory effect, and the alloy with higher degree of order has better shape memory effect......
with oxygen in the early stages of oxidation of equiatomic NiTi alloy[J]. Biomaterials, 2010, 31: 3439-3448. [6] STAROSVETSKY D, GOTMAN I. Corrosion behavior of titanium nitride coated Ni-Ti shape memory...:A Preparation of PVA/SiO2 sol-gel composite coatings on Ti-Ni shape memory alloy XIAO Tao1, XU Da-bao2, XIAO Zi-an3, LI Zhou1, 4, LEI Qian1, XU Bin1, XING Yan1 (1. School of Materials Science and Engineering......
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="ChDivSummary" name="ChDivSummary">Nearly equiatomic nickel–titanium(NiTi) alloy is an ideal implant biomaterial because of its shape memory effect, superelasticity, low elastic modulus as well as other desirable properties.However, it is prone to infection because of its poor antibacterial ability.The present work incorporated Cu into Ni–Ti–O nanopores(NP–Cu) anodically grown on the NiTi alloy......