Internal residual strain distribution in chromium-molybdenum steel after carburizing and quenching measured by neutron strain scanning

Yoshihisa Sakaida, Hajime Yoshida, Shigeki Yashiro, Shohei Yamashita, Takahisa Shobu

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

A hollow cylinder of a chromium-molybdenum steel composed of 0.20 mass% C was used as a model that simplified a motorcycle transmission gear. The cylinder was carburized in a carrier gas and quenched in an oil bath. After quenching, the internal residual strain and peak width distributions in the radial, hoop, and axial directions were nondestructively mapped by neutron strain scanning, and were compared to the results of an elastoplastic finite element analysis. The carbon content and hardness gradients were also measured to determine the case depth. The residual strain was evaluated from the lattice spacing change. The lattice spacing change was obtained from the peak shift from an unstressed peak position. In this study, the unstressed peak position was determined using coupons that were cut from the interior of the same quenched cylinder. As a result, the carbon content, hardness, and internal residual strain distributions almost accorded with the results of finite element analysis. Although the measured residual hoop strains near the hardened layer partially deviated from the analyzed weighted average strains, the validity of the internal strain field measured by neutron strain scanning was confirmed.

本文言語英語
ホスト出版物のタイトルMechanical Stress Evaluation by Neutrons and Synchrotron Radiation VI
出版社Trans Tech Publications Ltd
ページ173-177
ページ数5
ISBN(印刷版)9783037859117
DOI
出版ステータス出版済み - 2014
外部発表はい
イベント6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation, MECA SENS VI 2011 - Hamburg, ドイツ
継続期間: 9 7 20119 9 2011

出版物シリーズ

名前Materials Science Forum
772
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

その他

その他6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation, MECA SENS VI 2011
国/地域ドイツ
CityHamburg
Period9/7/119/9/11

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Internal residual strain distribution in chromium-molybdenum steel after carburizing and quenching measured by neutron strain scanning」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル