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+ type titanium alloy welded pipe excellent in strength and rigidity in the longitudinal direction of pipe and method for manufacturing the same
+ type titanium alloy welded pipe excellent in strength and rigidity in the longitudinal direction of pipe and method for manufacturing the same
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机译:在管的长度方向上具有优异的强度和刚性的+型钛合金焊接管及其制造方法
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摘要
Provided is an ±+² titanium alloy welded pipe excellent in the strength and the rigidity in the pipe longitudinal direction, the ±+² titanium alloy welded pipe having a composition consisting of, in mass%, Fe: 0.8% to 1.5%, N: 0.02% or less, and the balance: Ti and impurities, and satisfying Q shown in Formula (1) being 0.34 to 0.55. A tensile strength in a pipe longitudinal direction is more than 900 MPa and a Young's modulus in the pipe longitudinal direction is more than 130 GPa. Q = O + 2.77 × N + 0.1 × Fe where [Fe], [O], and [N] represent the amounts of the respective elements contained [mass%].
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机译:提供一种在管的长度方向上的强度和刚性优异的±+²钛合金焊接管,该±+²钛合金焊接管的成分为Fe:0.8〜1.5%N。 :满足0.02%以下,其余:满足式(1)所示的Q的Ti和杂质为0.34〜0.55。管道纵向的拉伸强度大于900MPa,管道纵向的杨氏模量大于130GPa。 Q = O + 2.77×N + 0.1×Fe其中,[Fe],[O]和[N]表示各元素的含量[质量%]。
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