英文:Hexagonal close-packed is a common crystal structure for many metals and alloys. 中文:在研究新材料时,科学家们经常关注其是否形成六方最密堆积结构。 英文:When studying new materials, scientists often focus on whether they form a hexagonal close-packed structure. ...
Temperature dependence and, in some cases, the strain-rate dependence of deformation in HCP metals such as pure Cd, Ti, Zn, and Zr and in Mg, Zr, and Ti alloys is then examined. The chapter also discusses structure evolution in pure cadmium and zirconium, and analyses deformation behaviour...
Unfortunately, the macroscopic formability of such materials is relatively poor at room temperature and these metals are characterized by a complex mechanical response. This response is a result of the interplay between different deformation modes at the microscale. Since magnesium is a material showing...
Bruggeman GA, Bishop GH, Hartt WH (1972) Coincidence and near-coincidence grain boundaries in hcp metals. In: Hu H (ed) The nature and behaviour of grain boundaries. Plenum, New York, pp 63-122G.A. Bruggeman, G.H. Bishop, and W.H. Hartt, Coincidence and near-coincidence grain ...
Nowadays the crystallographic characterization of polycrystalline metals and metallic alloys is usually performed by means of the electron backscatter diffraction (EBSD) technique. However, when dealing with coarse structures presenting intrinsic optical anisotropy, polarized light microscopy (PLM) imaging might...
C. (1992). "A new method for visualizing atomic arrangements in hcp metals: The figure of merit and the hcp circle". Journal of Crystal Growth. 122 (1-4): 136–151. [2] Haas, P. (1949). "The H–C–P lattice as an element of symmetry in the theory of metals". Acta ...
Capolungo L, Beyerlein IJ (2008) Nucleation and stability of twins in hcp metals. Phys Rev B 78:024117 Article Google Scholar Sun DY, Mendelev MI, Becker CA, Kudin K, Haxhimali T, Asta M (2006) Crystal-melt interfacial free energies in hcp metals: a molecular dynamics study of Mg....
The Peierls stress ranges from roughly 10−5 G in fcc and hcp metals to 5 × 10−3 G in bcc metals to high values (0.1 – 1 G) in covalently bonded solids such as Si and Ge (Chapter Chapter 3.05 of Suzuki et al., 1991). The Peierls stress is low in the common matrix ...
Structure and activity of nanoparticles of hexagonal close-packed (hcp) metals are studied using firstprinciples calculations. Results show that, in contact with a nitrogen environment, high-index {13 (4) over bar2} facets are formed on hcp metal nanoparticles. Nitrogen molecules dissociate easily ...
Hexagonal close-packed (hcp) metals such as Mg, Ti, and Zr are lightweight and/or durable metals with critical structural applications in the automotive (Mg), aerospace (Ti), and nuclear (Zr) industries. The hcp structure, however, brings significant complications in the mechanisms of plastic...