Solute segregation and "white zone" cracking in a weldable Al-Zn-Mg alloy

M. SAGEDUR RAHMAN, HILDEGARD CORDIER, IAN POLMEAR

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Abstract

ENERGY-DISPERSIVE MICROANALYSIS OF THIN FOILS IN A SCANNINGTRANSMISSION ELECTRON MICROSCOPE HAS BEEN USED TO MEASURE SOLUTE SEGREGATION IN THE REGION OF GRAIN BOUNDARIES IN AN AL-ZN-MG ALLOY WELDED WITH A RANGE OF FILLER WIRES. PARTICULARATTENTION HAS BEEN GIVEN TO THE SO-CALLED WHITE ZONE ADJACENT TO THE WELD BEADS AND A CORRELATION HAS BEEN FOUND BETWEEN LEVELS OF SEGREGATION THERE AND TIMES TO FAILURE BY INTERCRYSTALLINE STRESS-CORROSION CRACKING IN ACCELERATED LABORATORY TESTS.

Original languageEnglish
Pages (from-to)589-593
Number of pages5
JournalZ METALLKD
VolumeV 73
Issue numberN 9
Publication statusPublished - 1 Jan 1982

Cite this

RAHMAN, M. SAGEDUR., CORDIER, HILDEGARD., & POLMEAR, IAN. (1982). Solute segregation and "white zone" cracking in a weldable Al-Zn-Mg alloy. Z METALLKD, V 73(N 9), 589-593.