| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-10-29 |
| タイトル |
|
|
タイトル |
Cl^-を含むH_2SO_4溶液中におけるAl-Zn-Mg合金の応力腐食割れ |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Stress Corrosion Cracking of Al-Zn-Mg Alloy in H_2SO_4 Solution Containing Chloride Ion |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Stress Corrosion Cracking |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Polarization Curve |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Pitting Potential |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Crack Morphology |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Dissolving Site |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 作成者 |
小野, 宣明
佐藤, 昭規
昆, 謙造
|
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Stress corrosion cracking (SCC) of solution-treated Al-Zn-Mg alloy was mainly examined in O.2N-H,SO, +7.2XlO-3M-NaCI (Solution-A) and 0.4N-H,S04 +2.4xlO-3M-NaCI (Solution-B) solutions in relation to pitting potential, crack initiation sites and crack morphology. Pitting potentials (V c) obtained from current-time curves under various potentials were at -O.78V in solution-A, and at -O.68V in solution-B. The time to fracture decreased with an increase of applied potential in both solutions. It seems that the critical potential for SCC corresponds to the pitting potential under stress (V'c σ). Transgranular SCC was observed in both solutions. The crack directly initiates on the surface in the range of V' c σ - V c, and ini tia tes a t the bottom of pits in the range of V c -Vc' (potential which crack growth rate equals to pit growth rate). Mechanical fracture occurred in the potential above V c'. Cracks initiating from the bottom of pit stops growing below the protective potential (E R ). Therefore, it is necessary for SCC that dissolving pits be present. The crack path is at the grain boundary at pH=3.3 depending on the pH, however, crack and pitting potential does not exist at pH =5.8. |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
素材物性学雑誌
巻 11,
号 1,
p. 45-51,
発行日 1998-08-01
|
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
09199853 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN10140273 |
| 出版者 |
|
|
出版者 |
日本素材物性学会 |
sozai11a6.pdf (912.9 kB)
