Influence of phosphorus content and heat treatment on the machinability of electroless nickel deposits

Conference · Mon Jan 14 04:00:00 EST 1985

OSTI ID:5943876

Syn, C K; Dini, J W; Taylor, J S; Mara, G L; Vandervoort, R R; Donaldson, R R

Diamond turning is the use of a single point diamond tool on a precision lathe under very precisely controlled machine and environmental conditions to fabricate finished components. Coatings offer significant advantages for diamond turning applications inasmuch as they can be applied to light weight substrates such as aluminum or beryllium, or unusual substrates such as molybdenum or glass. One of the most used frequently employed coatings for diamond turning applications is electroless nickel. On occasions, electroless nickel deposits are not diamond turnable, e.g., tool life is shortened. This could be a function of phosphorus content, age of the solution, stress in the deposit, additives in the solution, heat treat conditions, etc. Efforts reported in this paper include machinability studies on electroless nickel deposits varying in composition from 1.8-13% phosphorus in the as-deposited condition, and after heating at 200, 400 and 600/sup 0/C.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5943876
• Report Number(s): UCRL-91148; CONF-850495-1; ON: DE85007250
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
CARBON
COHERENT SCATTERING
CUTTING
DIAMONDS
DIFFRACTION
ELEMENTAL MINERALS
ELEMENTS
HARDNESS
HEAT TREATMENTS
MACHINING
MECHANICAL PROPERTIES
METALS
MICROHARDNESS
MINERALS
NICKEL
NONMETALS
PHOSPHORUS ADDITIONS
SCATTERING
TRANSITION ELEMENTS
X-RAY DIFFRACTION