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Title: Method for gas bubble and void control and removal from metals

Patent ·
OSTI ID:870286
 [1];  [1]
  1. Idaho Falls, ID
+ Show Author Affiliations

A method for enhancing the diffusion of gas bubbles or voids attached to impurity precipitates, and biasing their direction of migration out of the host metal (or metal alloy) by applying a temperature gradient across the host metal (or metal alloy). In the preferred embodiment of the present invention, the impurity metal is insoluble in the host metal and has a melting point lower than the melting point of the host material. Also, preferably the impurity metal is lead or indium and the host metal is aluminum or a metal alloy.

Research Organization:
EG & G IDAHO INC
DOE Contract Number:
AC07-76ID01570
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
Patent Number(s):
US 5490187
OSTI ID:
870286
Country of Publication:
United States
Language:
English

References (1)

Anomalous helium bubble diffusion in dilute aluminum alloys journal June 1992

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Method for gas bubble and void control and removal from metals
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Related Subjects

method
gas
bubble
void
control
removal
metals
enhancing
diffusion
bubbles
voids
attached
impurity
precipitates
biasing
direction
migration
host
metal
alloy
applying
temperature
gradient
preferred
embodiment
insoluble
melting
material
preferably
lead
indium
aluminum
gas bubbles
temperature gradient
preferred embodiment
metal alloy
gas bubble
host material
purity metal
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