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In order to evaluate the welding fatigue performance of plate with high strength wind power steel Q420NE, the plate with the thickness of 20 mm is welded with submerged arc welding process, fatigue trend diagram (S-N curve) of welded joint is obtained through fatigue test and fatigue limit under set condition is calculated based on this. When repetitive loading is set to be 107 times, the maximum measured fatigue stress of welded joint is approximately 300 MPa, corresponding stress amplitude is 150 MPa and survival rate is 50%; when survival rate is 97.7%, its maximum fatigue stress is approximately 284 MPa and corresponding stress amplitude is 142 MPa.

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为了评价高强风电钢Q420NE钢板的焊接疲劳性能,采用埋弧焊工艺对厚度为20 mm的钢板进行焊接,接头通过疲劳试验获得疲劳趋势图(S-N曲线),并以此为依据计算出设定状态下的疲劳极限。当反复加载数设定为107次时,实测的焊接接头最大疲劳应力约为300 MPa,对应的应力幅为150 MPa,其对应的存活率为50%;当存活率为97.7%时,其最大疲劳应力约为284 MPa,对应的应力幅为142 MPa。

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韩钧(1983-),男,辽宁省鞍山市人,博士,高级工程师,现从事钢板生产工艺技术研究。

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韩钧(1983-),男,辽宁省鞍山市人,博士,高级工程师,现从事钢板生产工艺技术研究。

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韩钧(1983-),男,辽宁省鞍山市人,博士,高级工程师,现从事钢板生产工艺技术研究。

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高强风电钢Q420NE焊接疲劳性能研究
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韩钧 , 黄利 , 袁晓鸣
包钢科技 | 品种质量与试验研 2026,52(2): 31-34
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包钢科技 | 品种质量与试验研 2026, 52(2): 31-34
高强风电钢Q420NE焊接疲劳性能研究
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韩钧, 黄利, 袁晓鸣
作者信息
  • 内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
  • 韩钧(1983-),男,辽宁省鞍山市人,博士,高级工程师,现从事钢板生产工艺技术研究。

Research on Welding Fatigue Performance of High Strength Wind Power Steel Q420NE
Jun Han, Li Huang, Xiaoming Yuan
Affiliations
  • Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2026-04-25
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为了评价高强风电钢Q420NE钢板的焊接疲劳性能,采用埋弧焊工艺对厚度为20 mm的钢板进行焊接,接头通过疲劳试验获得疲劳趋势图(S-N曲线),并以此为依据计算出设定状态下的疲劳极限。当反复加载数设定为107次时,实测的焊接接头最大疲劳应力约为300 MPa,对应的应力幅为150 MPa,其对应的存活率为50%;当存活率为97.7%时,其最大疲劳应力约为284 MPa,对应的应力幅为142 MPa。

风电钢  /  焊接  /  疲劳极限  /  应力

In order to evaluate the welding fatigue performance of plate with high strength wind power steel Q420NE, the plate with the thickness of 20 mm is welded with submerged arc welding process, fatigue trend diagram (S-N curve) of welded joint is obtained through fatigue test and fatigue limit under set condition is calculated based on this. When repetitive loading is set to be 107 times, the maximum measured fatigue stress of welded joint is approximately 300 MPa, corresponding stress amplitude is 150 MPa and survival rate is 50%; when survival rate is 97.7%, its maximum fatigue stress is approximately 284 MPa and corresponding stress amplitude is 142 MPa.

wind power steel  /  welding  /  fatigue limit  /  stress
韩钧, 黄利, 袁晓鸣. 高强风电钢Q420NE焊接疲劳性能研究. 包钢科技, 2026 , 52 (2) : 31 -34 .
Jun Han, Li Huang, Xiaoming Yuan. Research on Welding Fatigue Performance of High Strength Wind Power Steel Q420NE[J]. Science & Technology of Baotou Steel, 2026 , 52 (2) : 31 -34 .
2026年第52卷第2期
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  • 接收时间:2025-11-18
  • 首发时间:2026-06-17
  • 出版时间:2026-04-25
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  • 收稿日期:2025-11-18
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    内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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