表面応力計測における圧子押込み法とX線回折法の差異について

• 岡野 成威

  大阪大学 大学院工学研究科

• 金丸 大輔

  大阪大学 大学院工学研究科

• 伊原 涼平

  大阪大学 大学院工学研究科

• 望月 正人

  大阪大学 大学院工学研究科

書誌事項

タイトル別名

• On the Distinction between Instrumented Indentation Technique and X-ray Diffraction Method in Nondestructive or Semi-Nondestructive Surface Stress Measurement
• ヒョウメン オウリョク ケイソク ニ オケル アツコ オシコミ ホウ ト Xセン カイセツホウ ノ サイ ニ ツイテ

抄録

In this study, the effect of machined surface layer on stress measurement by means of instrumented indentation technique and X-ray diffraction method was comparatively investigated through the use of three weld specimens of low-carbon austenitic stainless steel with different machined surface layers; as-cutout, mechanically-polished and electrolytically-polished specimens. Tensile and compressive stresses exist respectively in the machined surface layer of as-cutout and mechanically-polished specimens. Meanwhile, no stress and no machined surface layer exist in electrolytically-polished specimen. Tungsten Inert Gas (TIG) bead-on-plate welding was performed under the same welding heat input condition to introduce the residual stress into these three specimens. Against these three specimens, firstly the X-ray diffraction method was applied, then the instrumented indentation technique was applied and finally the stress relief technique was applied to measure the distributions of residual stress after welding. Based on a comparison between these stress measurement results, the instrumented indentation technique was in good agreement with the stress relief technique rather than the X-ray diffraction method, even though both machined surface layer and penetration of indenter had almost the same depths. That is why it can be considered that the instrumented indentation technique measures the residual stress in deeper areas of material surface than penetration depth of indenter. A distinction between the instrumented indentation technique and X-ray diffraction method in surface stress measurement was thus clarified from a viewpoint of measurement depth.

収録刊行物

• 材料

  材料 65 (4), 319-324, 2016

  公益社団法人 日本材料学会

キーワード

• Instrumented indentation technique
• X-ray diffraction method
• Surface stress measurement
• Machined surface layer
• Stress relief technique

詳細情報

• CRID: 1390001205444358784
• NII論文ID: 130005146432
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.65.319
• ISSN: 18807488
• ISSN: 05145163
• NDL書誌ID: 027303700
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027303700
• Web Site: https://www.jstage.jst.go.jp/article/jsms/65/4/65_319/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可