β型チタン合金（ＴＮＴＺ）線引き材の力学的特性と変形挙動

DOI 機関リポジトリ 機関リポジトリ HANDLE HANDLE ほか2件をすべて表示 一部だけ表示 被引用文献2件 参考文献26件

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タイトル別名
  • Mechanical Properties and Deformation Behavior of .BETA.-Type Titanium Alloy(TNTZ) Drawn Wires
  • ベータガタ チタン ゴウキン TNTZ センビキ ザイ ノ リキガクテキ トクセイ ト ヘンケイ キョドウ
  • Mechanical properties and deformation behavior of β-type titanium alloy (TNTZ) drawn wires

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抄録

  Tensile and fatigue properties are important mechanical properties in drawn wires for biomedical and dental applications because of the credibility against the monotonic loading fracture or fatigue failure. The mechanical properties and deformation behavior of drawn wires of Ti-29Nb-13Ta-4.6Zr with diameters of 1.0 mm and 0.3 mm (designated as TNTZd1.0 and TNTZd0.3) were investigated to know a potential for biomedical and dental applications in this paper.<br>    The microstructure of forged Ti-29Nb-13Ta-4.6Zr subjected to a solution treatment at 1063 K (TNTZST) comprises a single β phase with an average diameter of 25 μm. While that of TNTZd1.0 comprises a needle-like single β phase elongated parallel to the drawing direction. Tensile strengths of TNTZd1.0 and TNTZd0.3 are approximately 740 MPa and 800 MPa, respectively. While both elongations are nearly equal to each other (approximately 5.0%). The elastic modulus of TNTZd1.0 is approximately 50 GPa and that slightly smaller than approximately 55 GPa of TNTZd0.3. The notch-fatigue limit of TNTZd1.0 is 250 MPa. TNTZST exhibits the maximum elastic strain of approximately 1.4%. And the stress-strain curve shows a single gradient during elastic deformation region. The stress-strain curves of TNTZd1.0 and TNTZd0.3 in the elastic deformation region show two gradients, and the values of the maximum elastic strains in both wires are approximately 2.9% and 2.8%, respectively.<br>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 69 (7), 530-537, 2005

    公益社団法人 日本金属学会

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