Effect of the strain rate on stress corrosion crack velocities in face-centred cubic alloys. A mechanistic interpretation

Autor:	J.R Galvele, Santiago Serebrinsky
Rok vydání:	2004
Předmět:	Materials science General Chemical Engineering Metallurgy Fracture mechanics General Chemistry Intergranular corrosion Strain rate Corrosion Stress (mechanics) Brass visual_art visual_art.visual_art_medium General Materials Science Composite material Stress corrosion cracking
Zdroj:	Corrosion Science. 46:591-612
ISSN:	0010-938X
DOI:	10.1016/s0010-938x(03)00172-0
Popis:	Constant extension rate tests on smooth samples, with strain rate (SR) values from 10−6 s−1 up to 20 s−1, were used to study stress corrosion cracking (SCC) systems in face-centred cubic alloys. It was found that by increasing the SR a monotonic increase of the log CPR (crack propagation rate) takes place. It was also observed that the slope α in log CPR vs. log SR plots had different values for different SCC morphologies. Intergranular SCC is more steeply accelerated by SR, αIG=0.5–0.7, than transgranular SCC, αTG=0.2–0.3. The differences found between intergranular SCC and transgranular SCC were analysed under the light of the available SCC mechanisms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::16b79bdc15a1157f393e4142abe0b9c1 https://doi.org/10.1016/s0010-938x(03)00172-0 Zobrazit plný text záznamu Full Text from ScienceDirect