理化检验-物理分册2024，Vol.60Issue(7)：63-65,3.DOI:10.11973/lhjy-wl230232
冷轧连退带钢力学性能不合格原因
Reasons for unqualified mechanical properties of cold rolled continuous strip steel
赵海生 1段嘉荣 1唐晓芳 1王松 1周仕泽1
作者信息
- 1. 山西建龙实业有限公司,运城 043801
- 折叠
摘要
Abstract
Using methods such as metallographic examination and mechanical property testing,the reasons for the unqualified mechanical performance indicators such as yield strength,tensile strength,and elongation after fracture of cold-rolled strip steel were analyzed.The results show that when the annealing rate was slow,the temperature of the open flame section strip increased.When the strip temperature exceeded the start austenitizing temperature of pearlite by 30℃,the pearlite in the structure tended to undergo spheroidization transformation,and the strength of the material significantly decreased.When the annealing rate was fast,the temperature of the open flame section of the strip decreased.When the temperature of the strip was 10℃lower than the start austenitizing temperature of pearlite,grain recrystallization or incomplete grain growth occurred,resulting in higher material strength and lower elongation after fracture.关键词
退火工艺/金相检验/力学性能/晶粒/珠光体开始奥氏体化温度/珠光体Key words
annealing process/metallographic examination/mechanical property/grain size/start austenitizing temperature of pearlite/pearlite分类
通用工业技术引用本文复制引用
赵海生,段嘉荣,唐晓芳,王松,周仕泽..冷轧连退带钢力学性能不合格原因[J].理化检验-物理分册,2024,60(7):63-65,3.
