金属学报  1982, Vol. 18 Issue (4): 515-518

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Ⅲ型裂纹剪应力场和氢的互作用

褚武扬;肖纪美;王枨;朱淑彦

北京钢铁学院;北京钢铁学院;北京钢铁学院;北京钢铁学院

INTERACTION BETWEEN HYDROGEN AND A TYPE Ⅲ CRACK

Chu Wuyang Xiao Jimei Hsiao Chi-mei Wang Cheng Zhu Shuyan (Beijing University of Iron and Steel Tecnology) (Manuscript received 26 September; 1981)

褚武扬;肖纪美;王枨;朱淑彦. Ⅲ型裂纹剪应力场和氢的互作用[J]. 金属学报, 1982, 18(4): 515-518.
, , , . INTERACTION BETWEEN HYDROGEN AND A TYPE Ⅲ CRACK[J]. Acta Metall Sin, 1982, 18(4): 515-518.

摘要 参考文献 相关文章 Metrics 全文: PDF(441 KB)   摘要: <正> 当试样中存在拉应力梯度时,氢能使表观屈服应力明显下降,从而能引起氢致滞后塑性变形和氢致滞后裂纹,对Ⅲ型裂纹,由于不存在流体静压力,故一般认为它不能产生氢致裂纹。但我们的工作表明,对充氢的Ⅲ型试样,在扭矩大于临界值后保持一定时间就能在和原裂纹面成-45°的诸平面上产生氢致滞后裂纹,它导致典型的沿晶断口。对三个钢种都有类似结果。如充氢试样直接扭断,则 Abstract：For a charged type Ⅲ cracked or notched specimens of ultra-high strength steels, the hydrogen induced delayed cracking(HIDC)could occur along the planes inclined 3π/4 to a plane normal to the torsion axis. No delayed cracking and failure occurred in a uncharged or outgased type Ⅲ specimen and a flat shear fracture would be obtained on the plane normal to the torsion axis. The calculation shows that the interaction energy between shear stress field of tye type Ⅲ crack and the strain field of an interstitial hydrogen atom has a minimum value on the planes inclined 3π/4 to the plane normal to the torsion axis. Hence, atomic hydrogen will diffuse to and be enriched in these planes and HIDC will occur along these planes. 收稿日期: 1982-04-18      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 褚武扬 肖纪美 王枨 朱淑彦 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1982/V18/I4/515 1 褚武扬;肖纪美;李世琼;朱淑彦,金属学报,18(1981) ,47． 2 褚武扬;肖纪美;李世琼,金属学报,17(1981) ,10． 3 Chu,W.Y.(褚武扬);Hsiao,C.M.(肖纪美),Li,S.Q.(李世琼),Corrosion,36(1980) ,475;37 (1981) ,320． 4 Cochardt, A.U.; Schock, G.; Wiedersich, H., Acta Metall., 3(1955) , 533． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed