10B21冷镦钢冷镦成型开裂原因分析
|
摘要
针对10B21冷镦钢在冷镦成型时头部发生开裂的现象,对冷镦开裂试样及未进行冷镦的拉拔钢丝分别进行化学成分、非金属夹杂物、金相组织、电子探针微区成分检测等理化性能检测.结果表明:材料近表面存在渣子是冷镦成型开裂的主要原因,根据渣子成分推测,渣子属于精炼渣卷入.
The head of cold heading steel 10 B21 cracked in the cold heading forging process. A series of tests of physical and chemical properties,such as chemical composition,microstructure,nonmetallic inclusions,scanning electron microscopy and energy spectrum detection,have been done on the cracked cold heading test-specimen and the drawn steel wire without cold heading respectively. The results show that slag in the near-surface is the main cause of the cracking during the cold heading forging process. It can be calculated that the slag is from the refining slag according to the slag composition.
The head of cold heading steel 10 B21 cracked in the cold heading forging process. A series of tests of physical and chemical properties,such as chemical composition,microstructure,nonmetallic inclusions,scanning electron microscopy and energy spectrum detection,have been done on the cracked cold heading test-specimen and the drawn steel wire without cold heading respectively. The results show that slag in the near-surface is the main cause of the cracking during the cold heading forging process. It can be calculated that the slag is from the refining slag according to the slag composition.
引文
[1]陈卓,吴晓春.硼含量及奥氏体化温度对P20B钢淬透性的影响[J].钢铁研究学报,2008,20(10):40.
[2]苏亚红.冷镦钢质量控制技术[J].冶金信息导刊,2009(2):18-22.
[3]罗新中,林晏民,潘逸飞.SWRCH18A冷镦钢镦制螺钉原因分析[J].失效分析与预防,2016,11(6):372.
[4]帅习元,叶魏,仇东丽.含硼冷镦钢10B21冷镦开裂原因分析[J].钢铁研究,2016,42(2):40-42.
[5]曾国强.低碳钢高速线材的表面缺陷及冷镦开裂原因分析[J].理化检测(物理分册),2005,42(2):69-75.
[6]李静媛,章为夷,魏成富,等.钢中的夹杂物与钢的性能及判定[M].北京:冶金工业出版社,2012:11-14.
[2]苏亚红.冷镦钢质量控制技术[J].冶金信息导刊,2009(2):18-22.
[3]罗新中,林晏民,潘逸飞.SWRCH18A冷镦钢镦制螺钉原因分析[J].失效分析与预防,2016,11(6):372.
[4]帅习元,叶魏,仇东丽.含硼冷镦钢10B21冷镦开裂原因分析[J].钢铁研究,2016,42(2):40-42.
[5]曾国强.低碳钢高速线材的表面缺陷及冷镦开裂原因分析[J].理化检测(物理分册),2005,42(2):69-75.
[6]李静媛,章为夷,魏成富,等.钢中的夹杂物与钢的性能及判定[M].北京:冶金工业出版社,2012:11-14.