Zhang Yong-jun, Dong Yuan, Hu Jie-ren, Zhang Hui, Han Jing-tao
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引用次数: 0
Abstract
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.