| 管板堆焊层开裂的成因分析及处理措施 |
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| 引用本文： | 黄荣杰,杨朝瑞,胡林,王建明,常治平. 管板堆焊层开裂的成因分析及处理措施[J]. 压力容器, 2012, 29(5): 66-70,80 |
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| 作者姓名： | 黄荣杰 杨朝瑞 胡林 王建明 常治平 |
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| 作者单位： | 四川川润股份有限公司,四川自贡,643000 |
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| 摘 要： | Q345R钢基体上用A042(E309MoL-16)和A022(E316L-16)焊条堆焊后经过620℃/4 h处理,其弯曲试验在熔合线附近出现大量的宏观裂纹。通过金相及SEM分析认为热处理参数选择导致大量σ相析出是造成开裂的主要原因,变更热处理温度,从而避免了脆性相的产生。
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| 关 键 词： | 堆焊层开裂 成因分析 措施 |
Analysis on Crack Cause and Treatment Measure of Tubesheet Surfacing Layer |
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| HUANG Rong-jie , YANG Chao-rui , HU Lin , WANG Jian-ming , CHANG Zhi-ping. Analysis on Crack Cause and Treatment Measure of Tubesheet Surfacing Layer[J]. Pressure Vessel Technology, 2012, 29(5): 66-70,80 |
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| Authors: | HUANG Rong-jie YANG Chao-rui HU Lin WANG Jian-ming CHANG Zhi-ping |
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| Affiliation: | HUANG Rong - jie, YANG Chao - rui, HU Lin, WANG Jian - ming, CHANG Zhi - ping ( Sichuan CRUN Co. , Ltd. , Zigong 643000, China) |
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| Abstract: | The welding electrode A042 （ E309MoL - 16） and A022 （ E316L - 16） on Q345 R steel, after resurfaeing welding, it is done bend test through 620 ℃/4 h annealing. The result shows that there are lots of macro cracks near fusion line. After metallographic and SEM analysis,it is considered the main reason to cause cracks is lots of σ phase separating out due to heat treatment parameter selection. It adopts reducing heat treatment temperature to avoid brittle phase. |
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| Keywords: | surfacing layer crack analysis of cause treatment measures |
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