Hall-Petch strengthening for the microhardness of twelve nanometer grain diameter electrodeposited nickel

Journal Article · Tue Dec 31 23:00:00 EST 1985 · Scr. Metall.; (United States)

DOI:https://doi.org/10.1016/0036-9748(86)90219-X· OSTI ID:5744151

Hughes, G D; Smith, S D; Pande, C S; Johnson, H R; Armstrong, R W

Hall-Petch strengthening has been observed for the microhardness of electrodeposited nickel extending to a grain diameter of approximately 12 nm. A microhardness value of approximately 7 kN/mm/sup 2/ (700 kg/mm/sup 2/) is obtained at this smallest grain size. Estimated Hall-Petch friction stress and stress intensity values for flow stress at epsilon = 0.075 compare reasonably well with theoretical model calculations and previously reported tensile stress-strain measurements on related specimens.

• Research Organization: University of Maryland, College Park, MD 20742
• OSTI ID: 5744151
• Journal Information: Scr. Metall.; (United States), Journal Name: Scr. Metall.; (United States) Vol. 20:1; ISSN SCRMB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
CRYSTAL STRUCTURE
DEPOSITION
ELECTRODEPOSITION
ELECTROLYSIS
ELEMENTS
FLOW STRESS
FRICTION
GRAIN SIZE
LYSIS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
NICKEL
SIZE
STRAINS
STRESS ANALYSIS
STRESS INTENSITY FACTORS
STRESSES
SURFACE COATING
TENSILE PROPERTIES
TRANSITION ELEMENTS
VICKERS HARDNESS