21/4 Cr-1 Mo 鋼溶接継手のクリープラプチャ強さにおよぼす熱処理の影響
スポンサーリンク
概要
- 論文の詳細を見る
The influence of heat treatment on the creep rupture strength at 550℃ of weld joint of 2 1/4 Cr-1 Mo steel, 57mm thick, were investigated. The used steel was worked with bending, reverse bending and straightening at 950-960℃, which assumed in the manufactured process of a welded seamy tube for heavy thickness steel. After the hot working processes, comparative specimens of base metal, weld metal and weld joint were made in the following three different conditions of heat treatment; (A) normalizing and tempering (950℃×2.5h air cooling and 720℃×3.5h furnace cooling)→submarged arc welding→stress relief (720℃×3.5h furnace cooling), (B) submarged arc welding→normalizing and tempering (950℃×2.5h air cooling ond 720℃×3.5h furnace cooling) and (C) submerged arc welding→stress relief (720℃×3.5h furnace cooling). The results are as follows; (1) The creep rupture strength of weld metal was inferior to that of base metal for the three different conditions of heat treatment. (2) The creep rupture strength of conventional small size specimens, cut off from the weld joint, were generally superior to that of large size specimens, having the shape as welded but no reinforcement. (3) The heat treatment of normalizing and tempering after welding reduced the creep rupture strength in comparison with that of stress relief after welding. Generally, the creep rupture strength of columnar stracture in weld metal seem to be superior to that of ferrite emerged with the recrystallization by normalizing.
- 社団法人溶接学会の論文
- 1965-04-25
著者
関連論文
- 再現溶接金属の連続冷却変態図 : 再現溶接金属の連続冷却変態図の作成方法と二, 三の溶接金属の連続冷却変態図
- 355 横向各層1パスI形狭開先溶接法(NOW-HB法)の研究 : ウイービング効果
- 259 横向細隙片面アーク溶接法(NOW-H法)の研究(第3報) : 鉄骨現場溶接への適用
- 316 細隙片面アーク溶接法による横向溶接(横向NOW法)に関する研究(第2報) : 裏波ビード形成機構について
- 動的拘束溶接割れ試験装置の試作およびそれによる二, 三の実験
- (46) 高張力鋼の熔接性に関する研究(第 3 報) : 小型リーハイ型割れ試験(昭和 35 年度春季学術講演会講演概要)
- (45) 高張力鋼の熔接性に関する研究(第 2 報) : 小型鉄研式割れ試験(昭和 35 年度春季学術講演会講演概要)
- 101 H形拘束割れ試験結果とインプラント試験結果との相関について
- 448 タンデム式超音波探傷試験法に関する研究(第3報) : ルート近傍及び断続模擬欠陥による欠陥評価の検討
- 327 タンデム式超音波探傷試験法に関する研究(第2報) : 模擬欠陥による欠陥評価の検討