压力容器
壓力容器
압력용기
2014年
7期
1-5
,共5页
步伟东%彭啸%黄平%洪源平%王永新%黄超%余伟炜
步偉東%彭嘯%黃平%洪源平%王永新%黃超%餘偉煒
보위동%팽소%황평%홍원평%왕영신%황초%여위위
CRDM管座%试样重组技术%冲击性能%焊接工艺
CRDM管座%試樣重組技術%遲擊性能%銲接工藝
CRDM관좌%시양중조기술%충격성능%한접공예
CRDM adaptor%specimen reconstitution techniques%impact properties%welding technology
由于试验材料有限，采用试样重组技术将前期破断冲击试样重组成新的试样，对某电站CRDM管座晶粒度和夹杂物尺寸超标的母材进行性能复验。采用无损检测、金相、硬度和冲击试验对焊接工艺进行验证后，将合格的焊接工艺应用于最终试样的重组中。最终重组试样的冲击功远高于RCC-M 2007规范中的指标要求，本批次材料晶粒度和夹杂物尺寸超标对母材的冲击性能没有造成明显的劣化。
由于試驗材料有限，採用試樣重組技術將前期破斷遲擊試樣重組成新的試樣，對某電站CRDM管座晶粒度和夾雜物呎吋超標的母材進行性能複驗。採用無損檢測、金相、硬度和遲擊試驗對銲接工藝進行驗證後，將閤格的銲接工藝應用于最終試樣的重組中。最終重組試樣的遲擊功遠高于RCC-M 2007規範中的指標要求，本批次材料晶粒度和夾雜物呎吋超標對母材的遲擊性能沒有造成明顯的劣化。
유우시험재료유한，채용시양중조기술장전기파단충격시양중조성신적시양，대모전참CRDM관좌정립도화협잡물척촌초표적모재진행성능복험。채용무손검측、금상、경도화충격시험대한접공예진행험증후，장합격적한접공예응용우최종시양적중조중。최종중조시양적충격공원고우RCC-M 2007규범중적지표요구，본비차재료정립도화협잡물척촌초표대모재적충격성능몰유조성명현적열화。
As the properties of material of CRDM adaptor with grain size and inclusion size exceeding re-quirements were required to retest,specimen reconstitution techniques were taken to reconstitute new specimens with broken charpy specimens.Welding technology was evaluated by nondestructive examina-tion,metallographic observation,hardness test and charpy impact test.Then the qualified welding technol-ogy was applied to the reconstitution of the target specimens.The impact energy of target specimens were well above the code requirements of RCC -M 2007 ,and no significant degradation was found in these batch of materials as the grain size and inclusion size was overlarge.
