Effects of annealing on tensile property and corrosion behavior of Ti–Al–Zr alloy

Kim, Tae Kyu; Choi, Byung-Soon; Jeong, Yong-Jin; Lee, Doo-Jeong; Chang, Moon-Hee

doi:10.1016/s0022-3115(02)00710-9

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…From this spectrum, the other structures were Fig. 2 [21][22][23][27][28][29]. The XRD patterns of the same specimen measured by the micro-XRD system showed the changes in the chemical structure from the center to the edge of the specimen during an oxidation.…”

Section: Determination Of the Chemical Structures For The Oxidized Zimentioning

confidence: 92%

“…Ti was chosen as a sample specimen because Ti and its alloys are mainly used as pipeline systems in nuclear reactors due to their excellent corrosion resistance, good mechanical properties and suitable durability characteristics [21][22][23][24]. However, in their native form TiO 2 films have poor mechanical properties and they are easily fractured under fretting and sliding wear conditions.…”

Section: Introductionmentioning

confidence: 99%

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Changes in chemical structure of oxidation reaction layers of Zircaloy-4 and Ti by micro X-ray diffractometry

Park

Han

et al. 2008

Journal of Nuclear Materials

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Section: Determination Of the Chemical Structures For The Oxidized Zimentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Changes in chemical structure of oxidation reaction layers of Zircaloy-4 and Ti by micro X-ray diffractometry

Park

Han

et al. 2008

Journal of Nuclear Materials

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“…Garzarolli et al found a large increase in the corrosion rate of zirconium alloy when tested in 20% NH 4 OH in 400 °C steam, but only in nickel autoclave (Garzarolli et al, 1993). Titanium, which belongs to the same elemental group as zirconium, also shows acceleration in corrosion and hydrogen absorption when tested in 360 °C ammonia aqueous solution (Kim et al, 2002;Kim et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Influence of Ammonia on the Corrosion Behavior of a Zr–Sn–Nb Alloy in High Temperature Water

et al. 2022

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Corrosion behaviors, microstructures of oxide films, and hydrogen absorptions of a Chinese domestic Zr alloy in 6.7 × 10−3 mol/L ammonia solution and 2.9 × 10−4 mol/L LiOH+9.3 × 10−2 mol/L H3BO3 solution at 360 °C, 18.6 MPa were studied. Weight gains, oxide film thicknesses, and hydrogen absorptions showed that the corrosion rate in the ammonia solution is a little higher than that in the boron–lithium solution. There is no significant difference in the microstructure and crystalline structure between the oxide films formed in the two types of solutions. The element distributions along the depth direction of the oxide films showed the existence of nitrogen in the oxide film formed in ammonia solution. Moreover, nitrogen was found to be segregated in local areas in a range of about 2 μm from the oxide/metal interface. The corrosion behavior of the Chinese domestic Zr alloy in 360 °C aqueous solution shows no difference with other Zr alloys.

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Influence of ammonia on the corrosion behavior of Ti−Al−Zr alloy in 360°C water

et al. 2007

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The influence of ammonia on the corrosion behavior of Ti-Al-Zr alloy was evaluated in pressurized water at 360°C for 600 days. The results of the corrosion test indicated that the addition of ammonia accelerated the corrosion and hydrogen pickup rates. The oxide scales were composed of a double layer structure, and an inner layer was covered by an outer layer of oxide grains. The XRD studies on the oxide scales showed that the anatase-TiO 2 was continuously transformed into rutile-TiO 2 as the corrosion proceeded. When the same weight gain was considered, the oxide layer grown in water appeared to have a much higher rutile weight fraction than that grown in the ammonia aqueous solution. The deterioration of the corrosion behavior by the ammonia could be mainly attributed to the retardation in the transformation of the oxide structure from a metastable anatase phase to a stable rutile one.

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Effects of annealing on tensile property and corrosion behavior of Ti–Al–Zr alloy

Cited by 11 publications

References 12 publications

Changes in chemical structure of oxidation reaction layers of Zircaloy-4 and Ti by micro X-ray diffractometry

Changes in chemical structure of oxidation reaction layers of Zircaloy-4 and Ti by micro X-ray diffractometry

Influence of Ammonia on the Corrosion Behavior of a Zr–Sn–Nb Alloy in High Temperature Water

Influence of ammonia on the corrosion behavior of Ti−Al−Zr alloy in 360°C water

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