金属学报  1986, Vol. 22 Issue (3): 21-148

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纯Ti板材屈服强度和氢化物组织结构与氢含量的关系

王瑞坤;王得明

北京有色金属研究总院;北京有色金属研究总院

DEPENDENCE OF HYDROGEN CONTENT ON HYDRIDE STRUCTURE AND YIELD STRENGTH OF TITANIUM PLATE

by WANG Ruikun; WANG Deming (Beijing General Research Institute of Non-ferrous Metals)

王瑞坤;王得明. 纯Ti板材屈服强度和氢化物组织结构与氢含量的关系[J]. 金属学报, 1986, 22(3): 21-148.
, . DEPENDENCE OF HYDROGEN CONTENT ON HYDRIDE STRUCTURE AND YIELD STRENGTH OF TITANIUM PLATE[J]. Acta Metall Sin, 1986, 22(3): 21-148.

摘要 参考文献 相关文章 Metrics 全文: PDF(2870 KB)   摘要: 在540和650℃,含氢60—80ppm的纯Ti板材的屈服强度σ_(0.2)出现降低,进一步增加氢含量,σ_(0.2)不再降低。在室温和540℃,氢含量低于50ppm时,应力-应变曲线上有明显上下屈服点;在650℃或氢含量高于50ppm,明显的上下屈服点消失。由此算得纯Ti中氢原子与位错之间的最大互作用能为0.47—0.53eV。 纯Ti中的氢化物均为片状和针状。在氢含量低于80ppm时,氢化物为体心四方结构TiH_2;高于80ppm,为fcc结构TiH_2。在氢含量低至15ppm的试样中也发现了体心四方结构TiH_2。 Abstract：The yield strength of the pure Ti plate may be decreased at 540—650℃ for specimen containing H within the range of 60 to 80 ppm, but it is decreased no more in increasing H. The sharp upper-lower yield point is occurred on the stressstrain curve as H content less than 50 ppm at room temperature and 540℃, and disappeared as H over 50 ppm or at 650℃. Thus, the maximum interaction energy between H atom and dislocation in pure Ti was calculated to be 0.47—0.53 eV. The morphology of hydride in pure Ti was observed in the plate or needle shape. The hydride TiH_2 was found to be the structure of BCT or fcc as H content less or more than 80 ppm respectively. It is also observed under HVEM that the hydride in specimen containing 15 ppm H is of BCT structure. 收稿日期: 1986-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 王瑞坤 王得明 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I3/21 1 #12． 2 #12． 3 Meyn, D.A., Hydrogen Damage, ASM, Metals Park, Ohio, 1977, p. 319． 4 Cottrell. A. H., 晶体的位错和范性流变,葛庭燧译,科学出版社,1960,p.148． 5 Heady, R.B., Corrosion, 9 (1978) , 303． 6 Hirsch, P.B.; Homwie, A.; Nickolson, R.B.; Pashley, D.W.; Whelan, M.J., Electron Microscopy of Thin Crystals, Butterworths, London, 1971, p. 325．T No related articles found! Viewed Full text Abstract Cited   Shared      Discussed