锻态超级双相不锈钢的高温拉伸塑性
Elevated Temperature Tensile Ductility of As-forged Super Duplex Stainless Steel
摘 要
用Gleeble-3800热变形模拟试验机研究了锻态00Cr25Ni7Mo4N超级双相不锈钢在900~1 300 ℃时的高温拉伸塑性和高温变形组织特征.结果表明：温度对锻态超级双相不锈钢的热塑性影响显著,在1 100~1 200 ℃具有良好的热塑性,在1 200 ℃时断面收缩率最高达到70%,温度超过1 200 ℃后,热塑性下降明显:高温固溶处理对该不锈钢的热塑性有很大的影响,固溶处理温度为1 100 ℃时,热塑性提高.
高温拉伸
热塑性
super duplex stainless steel
elevated temperature tensile
hot ductility
Abstract
The tensile properties at 900-1 300 ℃,as well as the deformed microstructure of the as-forged 00Cr25Ni7Mo4N super duplex stainless steel (SDSS) have been studied by thermo-mechanical simulator.The effect of temperature on the ductility of this steel is very obvious.The reduction in area (RA) of the as-forged SDSS is 70% at temperature of 1 200 ℃,and the alloy exhibited good ductility at 1 100-1 200 ℃.When the temperature is beyond 1 200 ℃,however,the hot ductility dropped remarkably.Moreover,high temperature solid solution treatment significantly influence the hot ductility of the as-forged SDSS.The hot ductility increase when the solid solution treatment temperature was 1 100℃.
中图分类号 TG146.1
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收稿日期 2006/7/4
修改稿日期 2006/9/20
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备注童骏(1981-),男,浙江临安人,硕士研究生.
引用该论文: TONG Jun,FU Wan-tang,ZHOU Can-dong,LIN Gang,SONG Guo-bin,SONG Hong-wei. Elevated Temperature Tensile Ductility of As-forged Super Duplex Stainless Steel[J]. Materials for mechancial engineering, 2007, 31(6): 50～52
童骏,傅万堂,周灿栋,林刚,宋国斌,宋洪伟. 锻态超级双相不锈钢的高温拉伸塑性[J]. 机械工程材料, 2007, 31(6): 50～52
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参考文献
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【3】Maki T,Furuhara T,Tsuzaki K.Microstructure development by thermomechanical processing in duplex stainless steel[J].ISIJ Int,2001,41(6):571-579.
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