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New beta-type Ti-Fe-Sn-Nb alloys with superior mechanical strength

机译:具有优异机械强度的新型β型Ti-Fe-Sn-Nb合金

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摘要

Ti-Fe-Sn-Nb alloys comprised of single β-Ti phase were developed showing excellent mechanical strength and superior plasticity. The alloys exhibited increased yield strength as a function of Fe content, where the Ti_(80)Fei_(14)Sn_3Nb_3 alloy presented the highest yield stress (1.88 GPa) comparable to that of Ti-based nanocrys-talline alloys. Moreover, a significant strain-hardening (520 MPa) was achieved along with the plastic deformation. The excellent mechanical strength was enhanced by the supersaturated β-Ti and the high density of lattice defects that restrict the dislocation motion.
机译:开发了由单β-Ti相组成的Ti-Fe-Sn-Nb合金,它们具有出色的机械强度和优异的可塑性。合金表现出增加的屈服强度,随Fe含量的增加而变化,其中Ti_(80)Fei_(14)Sn_3Nb_3合金具有最高的屈服应力(1.88 GPa),可与Ti基纳米晶体-滑石粉合金相比。此外,伴随塑性变形,实现了显着的应变硬化(520 MPa)。过饱和的β-Ti和限制位错运动的高密度晶格缺陷提高了优异的机械强度。

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  • 来源
    《Materials Science and Engineering》 |2017年第29期|348-351|共4页
  • 作者单位

    KTH Royal Institute of Technology, Dept of Materials Science and Engineering, 100 44 Stockholm, Sweden,WPI Advanced Institute for Materials Research, Tohoku University, 980-8577 Sendai, Japan;

    WPI Advanced Institute for Materials Research, Tohoku University, 980-8577 Sendai, Japan,Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, 8700 Leoben, Austria;

    Graduate School of Engineering, Tohoku University, 980-8577 Sendai, Japan;

    KTH Royal Institute of Technology, Dept of Materials Science and Engineering, 100 44 Stockholm, Sweden;

    KTH Royal Institute of Technology, Dept of Materials Science and Engineering, 100 44 Stockholm, Sweden;

    WPI Advanced Institute for Materials Research, Tohoku University, 980-8577 Sendai, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ti-Fe-Sn-Nb; Mechanical properties; Beta-Ti alloy; β-stability;

    机译:Ti-Fe-Sn-Nb;机械性能β-钛合金;β稳定性;

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