The environment-induced cracking of as-cold rolled Ni3(Si,Ti) and Ni3(Si,Ti) with 2Mo in sodium chloride solutions
| Autor: | Rokuro Nishimura, Sanat Wagle, Gadang Priyotomo, Kenji Okitsu, Takayuki Takasugi, Akihiro Iwase, Yasuyuki Kaneno |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Mechanical Engineering Sodium Metallurgy Metals and Alloys Intermetallic Analytical chemistry chemistry.chemical_element Transgranular fracture Chloride Ion chemistry Mechanics of Materials Materials Chemistry medicine Steady state (chemistry) Elongation Hydrogen embrittlement medicine.drug |
| Zdroj: | Journal of Alloys and Compounds. 639:504-510 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2015.03.202 |
| Popis: | The environment-induced cracking (EIC) of as cold-rolled Ni 3 (Si,Ti) and Ni 3 (Si,Ti) with 2Mo has been investigated as functions of applied stress, chloride ion concentration, test temperature, and pH by using a constant load method in NaCl solutions. The EIC susceptibility of both intermetallic compounds increased with increasing Cl − ion concentration and test temperature; and increased with decreasing pH. Both intermetallic compounds had the same transgranular fracture appearance and the relationship between log t f (time to failure) and log l ss (steady state elongation rate) became the identical straight line irrespective of applied stress, Cl − ion concentration, test temperature, and pH, which means that l ss becomes a relevant parameter for predicting t f . The EIC susceptibility of Ni 3 (Si,Ti) with 2Mo was lower than that of Ni 3 (Si,Ti), which showed the beneficial effect of Mo. From the results obtained, EIC of both intermetallic compounds was presumed to take place by hydrogen embrittlement (HE). |
| Databáze: | OpenAIRE |
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