The effect of external stress on hydride precipitation temperature in zirconium for a given hydrogen concentration in solid solution

Journal Article · Fri Oct 22 00:00:00 EDT 1999 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(99)00272-9· OSTI ID:20001713

Shi, S Q

In zirconium alloys, if hydrogen concentration exceeds the terminal solid solubility limit for hydride precipitation (TSSP), hydrides will form. The potential for hydride fracture at stress concentrators such as blunt flaws and sharp cracks is a concern in the nuclear industry. This report will answer the following question: Knowing the higher hydrogen concentration at a flaw tip, can the authors still use the TSSP data measured under no external stress to predict the temperature for hydride precipitation in the stressed state at a flaw tip?

• Research Organization: Hong Kong Polytechnic Univ., Kowloon (HK)
• OSTI ID: 20001713
• Journal Information: Scripta Materialia, Vol. 41, Issue 10; Other Information: PBD: 22 Oct 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PHASE TRANSFORMATIONS
STRESSES
ZIRCONIUM ALLOYS
HYDROGEN
SOLID SOLUTIONS
PRECIPITATION
HYDRIDES
THERMODYNAMICS