Electrodeposition of Invar Alloy

Anisotropic Thermal Expansion and Cooperative Invar/Anti-Invar Effects in MnNi Alloy

T. Yokoyama 2 and K. Eguchi (IMS, The Grad. Univ. for Adv. Stud.) Thermal expansion of a tetragonal Mn88Ni12 alloy, which exhibits significant anisotropy, was investigated by EXAFS and path-integral quantum mechanical simulations. The EXAFS reveals that the Mn local environment is actually tetragonally distorted, while the Ni one retains its inherent cubic-like symmetry. The large thermal expan...

Theoretical aspects of the FecNi1-c Invar alloy.

Zinc Alloy Electrodeposition for Corrosion Protection

t is known that the protective value of zinc is partially a result of its ability to form a protective film when plated on a base metal, such as steel. The zinc is sacrificial and corrodes I preferentially to protectthe steel. Although pure zinc coating provides some degree of protection for the substrate, in a severe corrosion environment, zinc is consumed rapidly. For this reason, it is usual...

Fabrication of Super Invar Micro- and Nano- Structures by Electrodeposition for Low Thermal Expansion Applications

5 wt % Co, are of both theoretical research and practical interest due to the anomalous codeposition behavior, the preferential deposition of less noble metal, and to the material's low coefficient of thermal expansion, CTE. A better understanding of anomalous codeposition allows for controlling the deposition rates of individual Fe, Ni, and Co metal during codeposition and hence the compositio...

ELECTRODEPOSITION OF NANO SIZE HYDROXYAPATITE COATING ON TI ALLOY

A film of osteoconductive and biocompatible material on biomedical metallic implants can create bioactivity of the implant and shorten healing time. Hydroxyapatite, that is the most important mineral part of human bone, was coated on Ti6Al4V using cathodic electrode position process. Pulse electrode position technique was used and the effects of different parameters such as potential, duty cycl...