Zhang Yong-jun, Dong Yuan, Hu Jie-ren, Zhang Hui, Han Jing-tao
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Hot Deformation Behavior of Duplex Stainless Steel 2205
The deformation behavior of duplex stainless steel 2205 is investigated by the method of high-temperature tensile and compressive tests using Gleeble 1500. The results of the tensile tests show that the tensile strength gradually decreases with increase in the deformation temperature; in the temperature range from 1020 to 1260°C the reduction of area is more than 60%. The incoordinate deformation of the two-phase tested steel in the range of 1020 – 1080°C leaves 1100 – 1200°C a suitable range for hot deformation. The results of compressive tests at the temperatures from 1100 to 1200°C show that the flow curve has typical features of dynamic recrystallization; with increase of the deformation temperature or decrease of the deformation rate, the peak stress and strain decrease separately; from this the Zener–Hollomon parameter is determined, which reflects the flow property of the tested steel, and an equation is proposed to describe the hot deformation.
期刊介绍：
Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering.
Topics covered include:
New structural, high temperature, tool and precision steels;
Cold-resistant, corrosion-resistant and radiation-resistant steels;
Steels with rapid decline of induced properties;
Alloys with shape memory effect;
Bulk-amorphyzable metal alloys;
Microcrystalline alloys;
Nano materials and foam materials for medical use.
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