In situ micro-tensile testing on proton beam-irradiated stainless steel

JOURNAL OF NUCLEAR MATERIALS

卷:493

Article

Vo, H. T.¹  Reichardt, A.¹  Frazer, D.¹  Bailey, N.¹  Chou, P.²  Hosemann, P.¹ 

[1] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

[2] Elect Power Res Inst, Palo Alto, CA USA

关键词: Radiation damage;    Micro-tensile testing;    Yield strength;    Total elongation;    Stainless steel;    Localized deformation;    Slip band;   

DOI  :  10.1016/j.jnucmat.2017.06.026

来源: Elsevier

【 摘 要 】

scale mechanical testing techniques are currently being explored and developed for engineering applications. In particular, micro-tensile testing can add tremendous value, since the entire stress-strain curve, including the strain to failure, can be measured directly. In this work, 304 stainless steel specimens irradiated with 2 MeV protons to 10 dpa (full-cascade setting in the Stopping and Range of Ions in Matter, SRIM, software) at 360 degrees C was evaluated using micro-tensile testing. It was found that even on the micron scale, the measured strain corresponds well with macroscopic expectations. In addition, a new approach to analyzing sudden slip events is presented. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free