6 g of as-sintered Ti-Zr-Ta alloy breaking through the target plate at a speed of1493 m/s in the 27 L closed target box reaches 0. 195 MPa, showing excellent impact energy release characteristics, and the energy release is mainly derived from the oxidation reaction of sm...
ta与nb的bcc相稳定作用大致相当,ta的加入对合金强度和塑性均有利,ta熔点很高且自身耐蚀性优异,有利于提升合金高温性能和抗腐蚀性能。但ta的添加会造成合金成本和密度的急剧上升,且ta添加过多对合金性能提升无明显作用,为了控制合金成本和比强度,使用微量的ta的对合金性能进行修饰。 12.在一些实施例中,各组分的原子数...
结果表明:3种合金的组成相均为单一β相,β相晶粒尺寸随着铌、铌+钽元素 的添加逐步减小;Ti-8Mo-2Zr合金的变形机制以应力诱发α″马氏体相变和{332}孪生为主,而 Ti8Mo-4Nb-2Zr和 Ti-8Mo-4Nb-2Zr-2Ta合金的变形机制以位错滑移为主;变形机制的转变导致合 金强度的提高和塑性的降低,铌和钽元素添加产生的...
Two alloy compositions, i.e., Ti 25 Nb 25 Zr 25 Ta 25 and Ti 30 Nb 20 Zr 20 Ta 20 Mo 10 (at.%), were produced by copper mold suction casting. Characterization was carried out by XRD, EBSD, and nanoindentation mapping. It was observed that Mo reduces the lattice difference between...
ultrafine-grained materialsequal channel angular pressing (ECAP)We report on a novel phenomenon, that is a high-strain-induced reverse martensitic transformation in an ultrafine-grained Ti-36Nb-2Ta-3Zr (wt.%) alloy processed by equal channel angular pressing (ECAP) at room temperature. Our ...
Characterization of air-formed surface oxide film on Ti–29Nb–13Ta–4.6Zr alloy surface using XPS and AES The surface oxide film on a Ti–29Nb–13Ta–4.6Zr alloy (TNTZ) was precisely characterized using X-ray photoelectron spectroscopy (XPS) and Auger electron ... Y Tanaka,M Nakai,T ...
英文名称:titanium alloy 定义:以钛为基加入适量其他合金元素组成的合金。耐海水腐蚀性。 应用学科:航空科技(学科);航空材料(二级学科) 钛是20世纪50年代发展起来的一种重要的结构金属,钛合金因具有强度高、耐蚀性好、耐热性高等特点而被广泛用于各个领域。世界上许多国家都认识到钛合金材料的重要性,相继对其进行研究...
A technology was developed to obtain homogeneous Ti–30Nb–13Ta–5Zr alloy. The alloy was shown to consist of a pure β-crystalline phase and possesses requisite mechanical properties. The alloy surface exhibits micro- and nanoscale structures. In terms of the ability to generate reactive oxygen...
Key words:Ti-Zr alloy mechanical properties microstructure 目前口腔修复用金属材料主要为贵金属及非贵金属两大类。其中贵金属材料以金合金为代表,由于金合金价格较高,在我国难以广泛应用。非贵金属材料以钴铬合金、镍铬合金为代表,其价格虽较低,但因其含有对人体有害的元素镍(Ni)、铬(Cr)、钴(Co)等,使用受到...
4、: The new titanium alloy Ti-Zr is suitable for dental use.Key words:Ti-Zr alloymechanical propertiesmicrostructure目前口腔修复用金属材料主要为贵金属及非贵金属两大类。其中贵金属材料以金合金为代表,由于金合金价格较高,在我国难以广泛应用。非贵金属材料以钴铬合金、镍铬合金为代表,其价格虽较低,但因...