ドープモリブデンの低温破断特性に及ぼす試験片厚さおよび試験方法の影響 Influence of Specimen Thickness and Test Method on Low-Temperature Fracture Characteristics in Doped Molybdenum

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In order to evaluate the strength and ductility of a material whose size and shape are limited, it is quite valid to apply the bend tests by using miniaturized specimens. In this study bend tests and tensile tests were performed for doped molybdenum with an elongated grain structure. Then influence of specimen thickness and test method on the low-temperature strength and ductility was discussed. In this study the fracture strength and ductility particularly at low temperatures were represented by two parameters, critical stress and critical temperature respectively.<BR>Results are summarized as follows. First, influence of specimen thickness ranging 0.5-1.0mm on the critical stress and critical temperature was not recognized for doped molybdenum with an elongated grain structure. Secondly, relationship between yield strength (σ<SUB>yt</SUB>) by tensile tests and that (σ<SUB>yb</SUB>) by bend tests was σ<SUB>yt</SUB>=σ<SUB>yb</SUB>/1.74 for doped molybdenum with an elongated and very large grain structure.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 45(11), 1028-1033, 1998-11-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002053153
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4608373
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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