16Mn(HIC)鋼硫化物應力腐蝕開裂實驗研究

李明; 李曉剛; 陳鋼; 劉智勇

doi:10.13374/j.issn1001-053x.2007.03.008

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16Mn(HIC)鋼硫化物應力腐蝕開裂實驗研究

doi: 10.13374/j.issn1001-053x.2007.03.008

1. 北京科技大學材料科學與工程學院, 北京 100083;
2. 中國特種設備檢測研究中心, 北京 100013

基金項目:

中國石油化工集團公司資助項目(No.301033)

國家重點基礎研究發展規劃項目(No.G19990650)

詳細信息

作者簡介:
李明(1975-),男,博士研究生;李曉剛(1963-),男,教授,博士生導師

中圖分類號: TG172
計量
- 文章訪問數: 196
- HTML全文瀏覽量: 77
- PDF下載量: 6
- 被引次數: 0
出版歷程
- 收稿日期: 2005-12-19
- 修回日期: 2006-06-30
- 網絡出版日期: 2021-08-16

Experimental investigation on sulfide stress corrosion cracking of 16Mn hydrogen-induced cracking resistance steel

1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. China Special Equipment Inspection and Research Center, Beijing 100013, China

摘要

摘要: 采用恒應變和慢應變速率拉伸實驗的方法,研究了16Mn(HIC)和16Mn鋼母材、焊縫在H₂S環境中應力腐蝕開裂.結果表明兩種材料在酸性H₂S介質中均發生穿晶型硫化物應力腐蝕開裂(SSCC);與16Mn鋼相比,16Mn(HIC)鋼有更好的抗SSCC性能,鋼中的C,Mn,P和S的含量降低有利于提高鋼的抗SSCC性能.焊縫及熱影響區在焊接過程中,產生的粗大魏氏組織、偏析、縮孔和夾雜等缺陷,降低了焊縫的抗SSCC能力.但是,通過焊后熱處理可以適當提高焊縫的抗SSCC能力.
- 16MN鋼 /
- 硫化物應力腐蝕開裂(SSCC) /
- 焊縫 /
- 氫致開裂 /
- 熱處理
Abstract: Constant strain bend and slow strain rate tests (SSRT) were used to investigate the resistance to sulfide stress corrosion cracking (SSCC) of 16Mn and 16Mn hydrogen-induced cracking (HIC) resistance steels and their welded seams in acid solutions with saturated hydrogen sulfide gas, The results show that all of sampies are sensitive to SSCC in the acidic solutions with H₂S. The mechanism of cracking is HIC and most cracks are transgranular type. The resistance to SSCC of 16Mn(HIC) steel with low content elements C, Mn, P and S is better than that of 16Mn steel. Otherwise, the welded seams have less resistance to SSCC than their matrix because of big crystals, inclusions, vacancies and defects produced in the process of welding, but the work of post welding heat treatment (PWHT) can increase the resistance of their welded seams.
- 16Mn steel /
- sulfide stress corrosion cracking /
- welded seams /
- hydrogen-induced cracking /
- heat treatment