Abstract:
A new view of
characteristic zone classification of fusion welding joint has
been put forward on the base of a number of metallographic
observations and researches. The characteristic zones of the
joint inculde(1) homogenous mixture region, (2) heterogenous
mixture zone, (3) partically melting zone, and (4) heat-affected
zone. (1) and (2) consist of the weld metal, (2) and (3) compose
the bond, the boundary between (2) and (3) is the fusion line.
Four kinds of characteristic appearences in the "heterogenous
mixture zone" are induced. The formation process of the Savage's
one are compared, to hoping that the formation essence and
composition feature of fusion welding joint can be reasonably
reflected.
Key words:
Fusion welding joint Characteristic
zone Terminology
Manuscript received on
October 8, 1994
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