商业纯钛自加热高压热处理的力学性能

任玉铎 张洋 罗坤

任玉铎, 张洋, 罗坤. 商业纯钛自加热高压热处理的力学性能[J]. 高压物理学报, 2020, 34(5): 051302. doi: 10.11858/gywlxb.20190846
引用本文: 任玉铎, 张洋, 罗坤. 商业纯钛自加热高压热处理的力学性能[J]. 高压物理学报, 2020, 34(5): 051302. doi: 10.11858/gywlxb.20190846
REN Yuduo, ZHANG Yang, LUO Kun. Properties of Commercial Pure Titanium under Self-Heating and High-Pressure Heating Treatment[J]. Chinese Journal of High Pressure Physics, 2020, 34(5): 051302. doi: 10.11858/gywlxb.20190846
Citation: REN Yuduo, ZHANG Yang, LUO Kun. Properties of Commercial Pure Titanium under Self-Heating and High-Pressure Heating Treatment[J]. Chinese Journal of High Pressure Physics, 2020, 34(5): 051302. doi: 10.11858/gywlxb.20190846

商业纯钛自加热高压热处理的力学性能

doi: 10.11858/gywlxb.20190846
基金项目: 中国博士后科学基金(2017M620097)
详细信息
    作者简介:

    任玉铎(1985-),男,博士,讲师,主要从事纳米材料性能研究. E-mail:renyd_work@sina.com

  • 中图分类号: O521.2

Properties of Commercial Pure Titanium under Self-Heating and High-Pressure Heating Treatment

  • 摘要: 研究了压力对商业纯钛(CPTi)淬火过程的影响。分别制备了退火、水淬及高压处理样品用于比较,分析了相组成和显微组织,并测量了显微硬度。结果表明:高压淬火处理后,样品组织均为Ti马氏体;随着压力的增加,晶粒生长被抑制,显微硬度增加。与常压水淬样品相比,在低压处理后样品硬度没有显著升高。为了研究高压处理后样品的拉伸性能,对采用自加热方式的高温高压处理样品进行了拉伸试验。研究表明,处理后样品强度有所提高,并且延展性良好,接近原始样品。

     

  • 图  高压组装示意图

    Figure  1.  Schematic of high pressure assembly

    图  不同处理方法得到的CPTi样品的XRD谱

    Figure  2.  XRD patterns of CPTi samples after different treatments

    图  AR和WQ样品的金相照片

    Figure  3.  Metallographs of AR and WQ samples

    图  1 173 K、不同压力下处理的GC样品的金相照片

    Figure  4.  Metallographs of the samples treated at 1 173 K under different pressures in graphite capsule

    图  不同压力下自加热处理后SH样品的金相照片

    Figure  5.  Metallographs of the samples treated at 1 173 K under different pressures by self-heating

    图  不同处理方法得到的CPTi样品的显微硬度

    Figure  6.  Microhardness of CPTi after different treatments

    图  不同处理方法下CPTi样品马氏体板条尺寸变化

    Figure  7.  Grain size/thickness of CPTi samples after different treatments

    图  不同压力下自加热法处理后样品的应力-应变曲线

    Figure  8.  Engineering stress-engineering strain curves of samples treated by self-heating under different pressures

    表  1  采用自加热法在1 173 K、不同压力下处理的CPTi样品的拉伸性能

    Table  1.   Tensile properties of CPTi treated by self-heating at 1 173 K under different pressures

    ConditionUTS/MPaYield stress/MPaElongation/%
    AR331.4298.144.7
    WQ461.5409.830.2
    SH, 2 GPa, 1 173 K470.2425.442.3
    SH, 3 GPa, 1 173 K477.8429.641.1
    SH, 4 GPa, 1 173 K480.2446.440.2
    SH, 5 GPa, 1 173 K495.2455.536.7
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  • 收稿日期:  2019-10-14
  • 修回日期:  2019-11-05

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