Wang Yuehua, Song Jinying, Wei Yingli, Zheng Xiaoping, Tian Yaqiang, Liu Zhixing, Sun Xueyu. Small Range Control of Pearlite Microstructure and Properties of 65Mn Hot Rolled Narrow Strip[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 150-155. doi: 10.7513/j.issn.1004-7638.2017.02.026
Citation:
Wang Yuehua, Song Jinying, Wei Yingli, Zheng Xiaoping, Tian Yaqiang, Liu Zhixing, Sun Xueyu. Small Range Control of Pearlite Microstructure and Properties of 65Mn Hot Rolled Narrow Strip[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 150-155. doi: 10.7513/j.issn.1004-7638.2017.02.026
Wang Yuehua, Song Jinying, Wei Yingli, Zheng Xiaoping, Tian Yaqiang, Liu Zhixing, Sun Xueyu. Small Range Control of Pearlite Microstructure and Properties of 65Mn Hot Rolled Narrow Strip[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 150-155. doi: 10.7513/j.issn.1004-7638.2017.02.026
Citation:
Wang Yuehua, Song Jinying, Wei Yingli, Zheng Xiaoping, Tian Yaqiang, Liu Zhixing, Sun Xueyu. Small Range Control of Pearlite Microstructure and Properties of 65Mn Hot Rolled Narrow Strip[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 150-155. doi: 10.7513/j.issn.1004-7638.2017.02.026
The pearlite microstructure and mechanical properties of 65 Mn hot rolled narrow strip was tested by OM、SEM、tensile testing machine and Rockwell hardness tester under different finishing temperature,cooling rate after finish rolling and cooling rate after coiling for formulation of small range quality control process parameters.The results show that with the increase of finishing temperature,the reduction of the cooling rate after finish rolling and increase of the cooling rate after coiling,the pearlite colony and pearlite interlaminar spacing increase,lamellar thicken and tensile strength and hardness gradually decrease.When finishing temperature is greater than 960 ℃,the cooling rate after finish rolling is less than 5.58 ℃/s and the cooling rate after coiling is less than 0.1 ℃/s,the resulting tensile strength is less than 900 MPa.
DownLoad: