検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Microstructure and residual strain measurements using time-of-flight and angle dispersive neutron instruments

飛行時間法と角度分散法中性子装置による材料組織と残留ひずみの測定

Zhou, L.*; Zhang, H.*; Qin, T. Y.*; Ao, N.*; 徐 平光   ; Su, Y. H.  ; He, L. H.*; Parker, J. D.*; 篠原 武尚   ; 菖蒲 敬久  ; Wu, S. C.*

Zhou, L.*; Zhang, H.*; Qin, T. Y.*; Ao, N.*; Xu, P. G.; Su, Y. H.; He, L. H.*; Parker, J. D.*; Shinohara, Takenao; Shobu, Takahisa; Wu, S. C.*

The neutron diffraction is widely applied to evaluate various microstructures and residual stresses while the neutron Bragg-Edge imaging is increasingly employed to obtain 2D mapping. Here, the microstructure and residual strain in induction-hardened S38C steel railway axles were complementarily measured by using the GPPD time-of-flight power diffractometer at CSNS (China spallation neutron source), the RESA angle dispersive neutron diffractometer at JRR-3 and the RADEN energy-resolved neutron imaging system at J-PARC. The full neutron patterns from GPPD about the gradient microstructure were Rietveld analyzed, and the related parameters from the surface to the core were found in good consistence with the microstructure mapping from RADEN. The 3$$times$$3$$times$$20 mm$$^{3}$$ comb-shape d0 samples were used on RESA, and the residual stress distribution in three directions was evaluated successfully. These results suggest a complementary use of various neutron instruments is valuable in engineering.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.