Abstract
High-pressure components are generally designed with safety factors based on the tensile strength (TS) of the material; accordingly, materials with higher TS permit designed components with thinner walls, which reduce the weight and cost of the parts. However, many high-strength metals are severely degraded by hydrogen. To this point, efforts to develop a high-strength metal with a TS far beyond 1000 MPa and excellent resistance to hydrogen embrittlement (HE) have failed. This study introduces a high-strength metal with an excellent HE resistance, composed of a precipitation-hardened copper-beryllium alloy with the TS of 1400 MPa. Slow strain rate tensile (SSRT) tests of both smooth and notched specimens were performed in 115-MPa hydrogen gas at room temperature (RT). The alloy had a relative reduction in area RRA ≈ 1 and a relative notch tensile strength RNTS ≈ 1, without degradation in either characteristic.
| Original language | English |
|---|---|
| Pages (from-to) | 15089-15094 |
| Number of pages | 6 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 41 |
| Issue number | 33 |
| DOIs | |
| Publication status | Published - Sep 7 2016 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
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High-strength copper-based alloy with excellent resistance to hydrogen embrittlement. / Yamabe, Junichiro; Takagoshi, Daiki; Matsunaga, Hisao; Matsuoka, Saburo; Ishikawa, Takahiro; Ichigi, Takenori.
In: International Journal of Hydrogen Energy, Vol. 41, No. 33, 07.09.2016, p. 15089-15094.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-strength copper-based alloy with excellent resistance to hydrogen embrittlement
AU - Yamabe, Junichiro
AU - Takagoshi, Daiki
AU - Matsunaga, Hisao
AU - Matsuoka, Saburo
AU - Ishikawa, Takahiro
AU - Ichigi, Takenori
PY - 2016/9/7
Y1 - 2016/9/7
N2 - High-pressure components are generally designed with safety factors based on the tensile strength (TS) of the material; accordingly, materials with higher TS permit designed components with thinner walls, which reduce the weight and cost of the parts. However, many high-strength metals are severely degraded by hydrogen. To this point, efforts to develop a high-strength metal with a TS far beyond 1000 MPa and excellent resistance to hydrogen embrittlement (HE) have failed. This study introduces a high-strength metal with an excellent HE resistance, composed of a precipitation-hardened copper-beryllium alloy with the TS of 1400 MPa. Slow strain rate tensile (SSRT) tests of both smooth and notched specimens were performed in 115-MPa hydrogen gas at room temperature (RT). The alloy had a relative reduction in area RRA ≈ 1 and a relative notch tensile strength RNTS ≈ 1, without degradation in either characteristic.
AB - High-pressure components are generally designed with safety factors based on the tensile strength (TS) of the material; accordingly, materials with higher TS permit designed components with thinner walls, which reduce the weight and cost of the parts. However, many high-strength metals are severely degraded by hydrogen. To this point, efforts to develop a high-strength metal with a TS far beyond 1000 MPa and excellent resistance to hydrogen embrittlement (HE) have failed. This study introduces a high-strength metal with an excellent HE resistance, composed of a precipitation-hardened copper-beryllium alloy with the TS of 1400 MPa. Slow strain rate tensile (SSRT) tests of both smooth and notched specimens were performed in 115-MPa hydrogen gas at room temperature (RT). The alloy had a relative reduction in area RRA ≈ 1 and a relative notch tensile strength RNTS ≈ 1, without degradation in either characteristic.
UR - http://www.scopus.com/inward/record.url?scp=84991670281&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84991670281&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2016.05.156
DO - 10.1016/j.ijhydene.2016.05.156
M3 - Article
VL - 41
SP - 15089
EP - 15094
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 33
ER -