汽车桥壳用钢Q490C冷弯开裂原因分析
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摘要
中厚板生产线生产的汽车桥壳用钢Q490C在弯曲试验时发生裂纹,从裂纹形貌、内部夹杂、组织形态等多方面着手,针对高强度钢的冷弯开裂现象进行了系统的分析,揭示了汽车桥壳用钢冷弯开裂的机理,对预防、减少此类钢板的冷弯裂纹出现具有一定的借鉴作用。
Q490 C steel for automobile axle shell produced by plate mill line cracked during bending test. From many aspects such as crack morphology, internal inclusions and organizational morphology, a systematic analysis for the cold-bending cracking phenomenon of high-strength steels was conducted. The mechanism of cold-bending cracking for automobile axle shell steel is revealed, and it can be used as a reference for preventing and reducing the appearance of coldbending cracks in such steel plates.
Q490 C steel for automobile axle shell produced by plate mill line cracked during bending test. From many aspects such as crack morphology, internal inclusions and organizational morphology, a systematic analysis for the cold-bending cracking phenomenon of high-strength steels was conducted. The mechanism of cold-bending cracking for automobile axle shell steel is revealed, and it can be used as a reference for preventing and reducing the appearance of coldbending cracks in such steel plates.
引文
[1]崔风平,孙玮,刘彦春等.中厚板生产与质量控制[M].北京:冶金工业出版社, 2008.10.
[2]许竹桃,陈方玉,张彦文等.Q345钢板冷弯裂纹产生的原因分析[J].武钢技术,2006,44(3):8-10.
[3]柳得橹,邵伟然,孙贤文等.钢的表面带状组织及其引起的冷弯裂纹[J].北京科技大学学报,2005,27(1):40-44.
[4]崔风平.中厚钢板冷弯裂纹与开裂原因分析[J].宽厚板,2017,23(01):42-45.
[5]刘云旭.低碳合金钢中带状组织的成因、危害和消除[J].金属热处理,2000(12):1-3.
[6]刘清友,董瀚,孙新军等.CSP工艺中含Nb钢的混晶问题及改善方法[J].钢铁,2003(8):16-19.
[2]许竹桃,陈方玉,张彦文等.Q345钢板冷弯裂纹产生的原因分析[J].武钢技术,2006,44(3):8-10.
[3]柳得橹,邵伟然,孙贤文等.钢的表面带状组织及其引起的冷弯裂纹[J].北京科技大学学报,2005,27(1):40-44.
[4]崔风平.中厚钢板冷弯裂纹与开裂原因分析[J].宽厚板,2017,23(01):42-45.
[5]刘云旭.低碳合金钢中带状组织的成因、危害和消除[J].金属热处理,2000(12):1-3.
[6]刘清友,董瀚,孙新军等.CSP工艺中含Nb钢的混晶问题及改善方法[J].钢铁,2003(8):16-19.