NITI

作品数:457被引量:926H指数:12
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Achieving superior mechanical flexibility and durability in additively manufactured NiTi-based bionic layered interwoven structures
《Science China(Technological Sciences)》2025年第4期128-143,共16页Jianfeng SUN Dongdong GU Ruiqi WANG Jingjia SUN Xin LIU Wenxin CHEN Jie WANG Keyu SHI 
supported by the National Natural Science Foundation of China(Grant No.52225503);the Key Research and Development Program of Jiangsu Province(Grant Nos.BE2022069,BE2022069-1);the National Natural Science Foundation of China for Creative Research Groups(Grant No.51921003);the Fundamental Research Funds for the Central Universities(Grant No.NI2024003)。
The stringent requirements for functional protective materials are driving innovation in flexible mechanical metamaterials.In this study,we proposed a bionic layered interwoven structure(BLI)based on the doubly period...
关键词:laser powder bed fusion NITI BIONIC gradient structure mechanical property 
Dumbbell-shaped thrombectomy device for cerebral venous sinus thrombus removal with controllable axial and longitudinal maneuverability
《National Science Review》2025年第3期379-391,共13页Ming Li Baoying Song Yan Wu Yang Zhang Xiaofeng Cao Hongkang Zhang Yi Xu Chuanjie Wu Chuanhui Li Chen Zhou Lu Liu Feng Yan Sijie Li Jian Chen Ran Meng Jiangang Duan Di Wu Lin Zuo Zikai Xu Zhou Li Yufeng Zheng Miaowen Jiang Xunming Ji 
supported by the National Natural Science Foundation of China(82102220,82027802,82171278 and 61975017);the Research Funding on Translational Medicine from Beijing Municipal Science and Technology Commission(Z221100007422023);the Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support from Yangfan Project(YGLX202325);the Non-profit Central Research Institute Fund of Chinese Academy of Medical(2023-JKCS-09);the Capital’s Funds for Health Improve-ment and Research(2024-2-2017).
Cerebral venous sinus thrombosis(CVST)is frequently observed in younger adults and features in large thrombus volume.Due to the triangular-like cross-sectional shape and large diameter of the superior sagittal sinus,a...
关键词:NiTi stent retriever biomechanical compatibility cerebral venous sinus thrombosis thrombus removal 
激光能量密度和固溶处理对激光选区熔化NiTi合金显微组织和性能的影响
《机械工程材料》2025年第3期81-87,共7页汪良 张亮 吴文恒 
上海市优秀学术/技术带头人计划项目(22XD1430900)。
以NiTi合金粉末为原料,在不同激光功率和扫描速度下采用激光选区熔化工艺制备NiTi合金,研究了激光能量密度(26.67~111.11 J·mm^(−3))和950℃×2 h固溶处理对NiTi合金显微组织、相对密度、力学性能的影响。结果表明:随着激光能量密度的...
关键词:激光选区熔化 NITI合金 拉伸性能 固溶处理 
激光粉末床熔融对NiTi/Zr复合材料显微组织及性能的调控机制
《机床与液压》2025年第4期191-198,共8页李晟 唐柳琳 闫星辰 邓朝阳 褚清坤 黄正华 郑李娟 
广东省自然科学基金面上项目(2023A1515011584);广东省重点领域研发计划项目(2023B0909020004);广州市基础与应用基础项目(2023A04J1608);中山市重大科技专项(2022A1006);广东工业大学智慧医疗创新技术中心揭榜挂帅项目(26330278206)。
采用激光粉末床熔融增材制造的NiTi形状记忆合金普遍存在延展性低、缺陷多、形状记忆性能调控困难等问题。针对此,通过在近等原子比NiTi合金粉末中加入质量分数为1%的ZrH_(2)粉末,形成NiTi/Zr金属基复合材料,以改善NiTi合金的成形性和...
关键词:激光粉末床熔融 NiTi/Zr金属基复合材料 力学性能 显微组织 
Effect of pre-aged NiTi particle layer on phase-transition behavior and damping performance of 5052Al alloy
《Transactions of Nonferrous Metals Society of China》2025年第2期392-404,共13页Chao-yi DING Hong-jie JIANG Jia-qiang HUANG Chong-yu LIU Hong-feng HUANG Shu-hui LIU Li-li WEI 
National Natural Science Foundation of China (No. 52061011);Guangxi Natural Science Foundation,China (No. 2022GXNSFAA035574);Innovation Project of Guangxi Graduate Education,China (No. YCSW2023361)。
The insufficient damping capabilities of aluminum alloy under low temperatures(<120℃)were addressed by developing high-damping laminated composites of NiTip/5052Al.This is achieved through the incorporation of varied...
关键词:pre-aging NiTi particle layer 5052Al alloy phase-transition behavior damping performance 
Effect of Hydrogen on the Transformation Ratcheting of NiTi SMA Wires: Experiment and Modeling
《Acta Mechanica Solida Sinica》2025年第1期33-44,共12页Han M.Jiang Wenxiang Shi Chao Yu Guozheng Kang 
Financial supports from the National Natural Science Foundation of China NSFC(No.12322203,12072296)are greatly appreciated.
This paper investigates the effect of hydrogen on the transformation ratcheting of NiTi shape memory alloy(SMA)wires in the experimental and theoretical aspects.In the aspect of experiments,the NiTi SMA orthodontic wi...
关键词:NiTi SMA Transformation ratcheting Diffusional-mechanical coupling Constitutive model 
考虑晶粒尺寸效应的梯度NiTi合金拉伸断裂行为模拟
《力学学报》2025年第1期116-135,共20页陈翔 黄正雄 禄盛 
国家自然科学基金(11802047);重庆大学机械传动国家重点实验室开放基金(SKLMT-KFKT-201711);西安交通大学机械结构强度与振动国家重点实验室开放基金(SV2018-KF-28)资助项目。
NiTi合金因其独特的形状记忆特性和超弹性而备受关注,被广泛认为是功能材料领域中最具研究潜力和发展前景的材料之一.梯度晶粒结构作为一种有效提升材料强度与延展性的方法,通过在材料内部实现晶粒尺寸的梯度分布,能够进一步提升NiTi合...
关键词:NITI 合金 尺寸效应 梯度多晶 裂纹扩展 
Phase field modeling of the aspect ratio dependent functional properties of NiTi shape memory alloys with different grain sizes被引量:1
《Acta Mechanica Sinica》2025年第1期22-41,共20页Bo Xu Beihai Huang Chong Wang Qingyuan Wang 
supported by the National Natural Science Foundation of China (Grant Nos.12202294 and 12022208);the Project funded by China Postdoctoral Science Foundation (Grant No.2022M712243);the Fundamental Research Funds for the Central Universities (Grant No.2023SCU12098).
It is well known that coarse-grained super-elastic NiTi shape memory alloys(SMAs)exhibit localized rather than homogeneous martensite transformation(MT),which,however,can be strongly influenced by either internal size...
关键词:Phase field modeling NITI Aspect ratio Grain size Functional property 
The impact of solution time on the microstructure and properties of NiTip/6061 Al matrix composites fabricated by hot pressing and extrusion
《Progress in Natural Science:Materials International》2024年第6期1304-1317,共14页Dong-Dong Zhuang Xin-Long Lian Hao-Di Li Shu-Hao Zhang Wang-Shi Yao Qian Wang 
financially supported by the National Natural Science Foundation of China(Grant No.52475461);2023 Ganzhou“Jiebangguashuai”Program(Grant No.2023ULGX 0002);the“JIANGXI DOUBLE THOUSAND PLAN”(Grant No.jxsq2023101058)
This study investigates the impact and underlying mechanisms of solution time on the microstructure and mechanical properties of Ni Ti particle-reinforced 6061 Al composites.The findings indicate that significant alte...
关键词:Al matrix composites NiTi particles Microstructure Interface reaction phase Mechanical properties 
Lithium Isotope Analytical Methods and Implications for Rare-Metal Mineralization in Granite-Pegmatite Systems:An Overview
《Journal of Earth Science》2024年第6期1878-1894,共17页Xiangying Ye Bin Li Dongbo Tan Kecheng Liu Zhiyong Zhu Hafiz Muhammad Siddique Yilin Xiao 
funded by the National Natural Science Foundation of China(Nos.42372105,42073001,42073003);the Hunan Science and Technology Innovation Program(No.2021RC4055);the Central South University Innovation-Driven Plan Project(No.2019CX035)。
The origin of highly-fractionated granite-pegmatite systems and their associated rare metal mineralization has been widely studied,but there is still ongoing debate.Prevailing hypotheses suggest that pegmatite formati...
关键词:lithium ISOTOPES granitic-pegmatite system magmatic-hydrothermal evolution rare-metal deposits 
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