書誌事項
- タイトル別名
-
- Effect of Processing Conditions on Residual Stress Distributions by Bead-on-plate Welding after Surface Machining
- ヒョウメン キカイ カコウ ゴ ノ ビードオンプレート ヨウセツ ニ ヨリ ハッセイ スル ザンリュウ オウリョク ブンプ ニ オヨボス カコウ ジョウケン ノ エイキョウ
この論文をさがす
抄録
Residual stress is important factor for stress corrosion cracking (SCC) that has been observed near the welded zone in nuclear power plants. Especially, surface residual stress is significant for SCC initiation. In the joining processes of pipes, butt welding is conducted after surface machining. Residual stress is generated by both processes, and residual stress distribution due to surface machining is varied by the subsequent butt welding. In previous paper, authors reported that residual stress distribution generated by bead on plate welding after surface machining has a local maximum residual stress near the weld metal. The local maximum residual stress shows approximately 900 MPa that exceeds the stress threshold for SCC initiation. Therefore, for the safety improvement of nuclear power plants, a study on the local maximum residual stress is important. In this study, the effect of surface machining and welding conditions on residual stress distribution generated by welding after surface machining was investigated. Surface machining using lathe machine and bead on plate welding with tungsten inert gas (TIG) arc under various conditions were conducted for plate specimens made of SUS316L. Then, residual stress distributions were measured by X-ray diffraction method (XRD). As a result, residual stress distributions have the local maximum residual stress near the weld metal in all specimens. The values of the local maximum residual stresses are almost the same. The location of the local maximum residual stress is varied by welding condition. It could be consider that the local maximum residual stress is generated by same generation mechanism as welding residual stress in surface machined layer that has high yield stress.
収録刊行物
-
- 材料
-
材料 63 (7), 551-556, 2014
公益社団法人 日本材料学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390282680421063296
-
- NII論文ID
- 130004481121
-
- NII書誌ID
- AN00096175
-
- ISSN
- 18807488
- 05145163
-
- NDL書誌ID
- 025632189
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可