成果報告書詳細
管理番号20120000000384
タイトル*平成23年度中間年報 水素製造・輸送・貯蔵システム等技術開発 水素ステーション機器要素技術に関する研究開発 水素用アルミニウム材料の評価・開発(2)
公開日2013/3/20
報告書年度2011 - 2011
委託先名古河スカイ株式会社
プロジェクト番号P08003
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容及び成果
インフラ用大型構造物を構成するために優れた強度とともに、特に良好な加工性が
強く求められることから、これまでは重点を置いていなかった非熱処理型のアルミニウム合金について検討する。
英文要約Title: Development of Technologies for Hydrogen Production, Delivery and Storage Systems. Research and Development of Elemental Technologies for Hydrogen Station Components. Assessment and Development of Aluminum Materials for Hydrogen (FY2010-FY2012) FY2011 Annual Report (2)
Aluminum alloy samples, AA6061 and AA6066, which were fabricated by Kobe Steel, Ltd were subjected to fatigue tests under controlled experimental humidity to fix an experimental condition for examining the hydrogen embrittlement sensitivity of the two alloys.
In addition, Al-Mg alloys were subjected to a sensitization heat treatment to increase its sensitivity for a stress corrosion cracking, and were subjected to slow strain rate tensile tests (SSRT testes) in order to examine the effect of Mg addition on hydrogen embrittlement sensitivity of aluminum alloys. The results showed a moderate hydrogen embrittlement sensitivity of the sensitized Al-Mg alloys, and Mg element was classified into a somewhat detrimental element. The effect of friction stir welding (FSW) on hydrogen embrittlement sensitivity of the Al-Mg alloys without the sensitization heat treatment was also examined, and the results suggested that FSW had little effect on the hydrogen embrittlement sensitivity. In addition to this, the effect of clad layer of high purity aluminum on the hydrogen embrittlement sensitivity of an Al-Zn-Mg alloy which had a very high sensitivity was studied. The clad layer showed beneficial effect of decreasing hydrogen embrittlement sensitivity of the Al-Zn-Mg alloy.
On the other hand, in order to select a suitable transition element added to aluminum alloys, we compare the hydrogen embrittlement sensitivity of Al-Mg alloy without a transition element to it of Al-Mg alloy with a transition element of Mn or Cr. This comparison suggested harmlessness of Mn and Cr for hydrogen embrittlement sensitivity of Al-Mg alloys.
Moreover, we surveyed new technologies and research on hydrogen energy in “International Hydrogen Energy Development Forum 2012” which was held at Kyushu in Japan on 1-2 February 2012.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る