Английский для сварщиков. Гричин С.В. - 95 стр.

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A section through a friction stir weld made in an Al-

Si casting alloy.

There are pores indica

ted in the base metal (BM). HAZ represents the heat

affected zone, TMAZ the thermomechanically affected zone, and SN the stir

nugget. The photographs in this section have kindly been provided by

Professor H. Fujii of JWRI, Japan.

Optical micrographs of region

s (a), (b) and (c) of the stir nugget. The location