退火工艺对DP590GA双相钢组织和性能的影响

作者：Li Huiyuan; Dai Jietao; Xian Lingbiao; Ren Jianping; Li Liejun

来源：Heat Treatment of Metals, 2021, 46(1): 50-54.

DOI：10.13251/j.issn.0254-6051.2021.01.009

• Annealing process
• Dual phase steel
• Hot dip galvanizing
• Microstructure
• Properties

Effects of annealing and rapid cooling processes on the properties and microstructure of C-Mn DP590GA steel were studied. The results show that the Rp0.2 of the tested steel increases with the increase of soaking temperature, and the more significant the increase of Rp0.2 along with the increase of soaking temperature. The elongation of the tested steel increases initially as the soaking temperature increases and decreases afterwards. The strength and plasticity of the tested steel increase and decrease, respectively with the increase of rapid cooling ending temperature. When the soaking temperature of the steel is 820℃, the better mechanical properties can be obtained: the Rp0.2 is 400 MPa, the Rm is 625 MPa and the A50 is 25.5%. ? 2021, Editorial Office of Jinshu Rechuli . All right reserved.

• 单位
  华南理工大学