「スマートマテリアル」 TiNi形状記憶合金ワイヤ強化Mg合金基複合材料の組織と機械的性質

  • 水内 潔
    大阪市立工業研究所材料プロセシング研究室
  • 井上 漢龍
    ワシントン大学材料科学工学科
  • 杉岡 正美
    大阪市立工業研究所材料プロセシング研究室
  • 伊丹 正郎
    大阪市立工業研究所材料プロセシング研究室
  • 浜田 賢一
    徳島大学大学院ヘルスバイオサイエンス研究部再生修復医歯学部門顎口腔再建医学講座
  • 川原 正和
    住友石炭鉱業株式会社

書誌事項

タイトル別名
  • Microstructure and Mechanical Properties of TiNi SMA Wire Reinforced Mg Alloy Matrix Composite

抄録

  Magnesium alloy matrix composite reinforced by continuous TiNi shape memory alloy (SMA) wire was fabricated by Pulsed Current Hot Pressing (PCHP) of TiNi SMA wires sandwiched with a pair of AZ31 Mg alloy plates, and its microstructure and mechanical properties were examined. The Mg alloy plates with 20 vol.% of the TiNi wires were readily hot pressed into a composite at the temperature of 773 K for a total processing time of 0.6 ks. During the processing, the thickness of the preform composed of Mg plates and TiNi wires decreased drastically at the temperature between 400 K and 650 K, resulting in the bonding between the wire and the matrix plates. As a reaction occurred insubstantially in the vicinity of the boundary between Mg alloy plates and TiNi wire, no homogeneous interfacial reaction layer was formed. The tensile yield stresses of the composite deformed in tension at 373 and 423 K were higher by about 68 MPa and 87 MPa than that at 293 K, respectively. At the test temperature range, both the yield stress and elongation of the composite increased with increasing temperature. At temperatures higher than 373 K, the specific strength of the composite was higher than that of AZ31 Mg alloy.<br>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 69 (8), 608-613, 2005

    公益社団法人 日本金属学会

被引用文献 (1)*注記

もっと見る

参考文献 (4)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ