成果報告書詳細
管理番号20150000000148
タイトル*平成26年度中間年報 水素利用技術研究開発事業 燃料電池自動車及び水素供給インフラの国内規制適正化、国際基準調和・国際標準化に関する研究開発 自動車用圧縮水素容器の基準整備・国際基準調和に関する研究開発
公開日2015/6/25
報告書年度2014 - 2014
委託先名一般財団法人日本自動車研究所 国立大学法人茨城大学 株式会社UACJ 日本軽金属株式会社 株式会社神戸製鋼所 サムテック株式会社
プロジェクト番号P13002
部署名新エネルギー部
和文要約
英文要約1. Safety evaluations of hydrogen container for vehicles
(JARI)For the degradation study of plastic liner, we exposed high-density polyethylene and polyamide to high-pressure hydrogen. These plastics are liner materials of VH4 container. And we investigated the strength (elongation, etc.) of the plastics before and after hydrogen exposure. As a result, there was no change in the strength. Therefore, it was revealed that there is no influence of high-pressure hydrogen exposure for the test materials.

2. International harmonization
(JARI)Main topics of GTR pahse 2 includes evaluation method of material hydrogen compatibility, and study of appropriate burst pressure of the containers. In order to resolve these issues, we launched the domestic deliberation organizations by industry-academia-government collaboration. Based on the sufficient cooperation with JAMA, we have created a study scenario for the safe and practical regulation and a draft of the evaluation test method for the verification.

3. Material evaluation and test method development of aluminum alloy
(Ibaraki Univ.)Sustained load cracking, SLC, test in humid air has been considered to be an appropriate method. The SLC tests have been applied on 6066 and 6069 aluminum alloy plates with T6-temper in 3.5%NaCl solution and air with relative humidity of less than 10% and more than 90%.
(UACJ)To investigate the effects of Si and Mg and Cu amounts, four kinds of 6066 alloys for high pressure hydrogen container were prepared. These 6066 alloys were tested for the resistance of hydrogen embitterment and stress corrosion cracking and intergranular corrosion based on conventional method. As a result, the influence of alloying elements on each characteristic of 6066 alloys was revealed.
(NLM)We have carried out the investigation of micro-structure changes of No.1-No.5 aluminum alloy during different solid-solution conditions. We found the optimum solid-solution condition for No.5 alloy which can attain the target micro-structure. Using this solid-solution condition, we also attained a 0.2% proof stress of over 400MPa after T6 heat-treatment. The T6 heat-treated No.5 alloy shows more excellent drill cutting machinability than T6 heat-treated commercial 6061 alloy.
(Kobe Steel,Ltd.)We selected 6069 and 6066 alloy from among high strength 6000 series aluminum alloys. After homogenization heat treatment was applied to the DC ingots, common samples were made by hot forging and heat treatment (T6).
(SAMTECH)TYPE3 containers using conventional 6061 aluminum were produced for making reference point and evaluated them. As an evaluation of the fatigue performance, I performed the pressure cycle test at 40% and 100% of the TYPE3 container using 6061 and compared with the life of 0% to 100% cycle. Then,in order to examine the TYPE3 container of autofrettage conditions, I subjected to measurement of bauschinger effect of 6061 material. Based on the above data, I made a 70MPa TYPE3 container using a 6061.
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