A Study on Hot Workability of Corrosion Resistance Alloy G3,G3-Z and 825

Special Steel ›› 2009, Vol. 30 ›› Issue (5): 1-3.

A Study on Hot Workability of Corrosion Resistance Alloy G3,G3-Z and 825

Bao Yaozong¹ , Dong Han¹ , Su Jie¹ , Yong Qilong¹ , Wang Lihui² , Li Mingzhi³

1. Institute for Structure Materials,Central Iron and Steel Research Institute,Beijing 100081;
2. Xinxing Cast Pipe Group Co.Ltd,Handan 056000;
3. Oil Production Engineering Technology Institute,Zhongyuan Oil-field Branch Co,Puyang 457001;

Received:2009-03-11 Online:2009-10-01 Published:2022-11-22

耐蚀合金G3、G3-Z和825热加工性的研究

包耀宗¹，董瀚¹，苏杰¹，雍岐龙¹，王黎辉²，李明志³

1. 钢铁研究总院结构材料研究所，北京 100081;
2. 新兴铸管集团有限公司，邯郸 056000;
3. 中原油田分公司采油工程技术研究院，濮阳 457001;

作者简介:包耀宗(1961-)，男，工学博士，高级工程师，耐蚀合金、特殊钢研究。

Abstract

Abstract: The stress-strain curves of corrosion resistant alloys G3 (%:0.012C,46.51Ni,24.71Cr,8.88Mo, 1.15W,1.72Cu,0. 10Nb),G3-Z(%:0.014C,46.53Ni,24.05Cr,6.89Mo,1.09W,1.70Cu)and alloy 825(%: 0.006C,43.77Ni,22. 10Cr,3.24Mo,1.90Cu,0.86Ti) with strain(e)0~0.8,strain rate 1～2.5s^-1 at 1030~ 1300 ℃ and the effect of temperature on max stress and reduction of area of alloys have been studied by using Thermomac-master-Z hot simulator,TEM and SEM,and the effect factors on dynamic recrystallization of alloys were analyzed. Results showed that with increasing temperature compensating factor Z,the grain size of dynamic-crystallizing of alloy G3,G3-Z and 825 decreased,and the available temperature range for hot-working was 1100~1240 ℃ for alloy G3,1130～1220 ℃ for alloy G3-Z and 1050~1240 ℃ for alloy 825.

Key words: Corrosion Resistant Alloy G3,G3-Z,825, Stress-Strain, Hot Ductility

摘要： 用Thermomacmaster-Z热模拟机和TEM,SEM研究了G3(%:0.012C、46.51Ni、24.71Cr、8.88Mo、1.15W、1.72Cu、0.10Nb)、G3-Z(%:0.014C、46.53Ni、24.05Cr、6.89Mo、1.09W、1.70Cu)和825耐蚀合金(%:0.006C、43.77Ni、22.10Cr、3.24Mo、1.90Cu、0.86Ti)1 030～1 300℃、应变量(ε)0～0.8、应变速率1～2.5 s^-1的应力-应变曲线和温度对合金最大应力和断面收缩率的影响,并分析了合金发生动态再结晶的影响因素。结果表明,G3、G3-Z、825合金动态再结晶的晶粒大小随温度补偿系数Z的增大而减小;G3、G3-Z、825合金适宜的热加工温度范围分别为1 100～1 240℃、1 130～1 220℃和1 050～1 240℃。

关键词: G3、G3-Z, 825耐蚀合金, 应力-应变, 热塑性

Bao Yaozong , Dong Han , Su Jie , Yong Qilong , Wang Lihui , Li Mingzhi. A Study on Hot Workability of Corrosion Resistance Alloy G3,G3-Z and 825[J]. Special Steel, 2009, 30(5): 1-3.

包耀宗, 董瀚, 苏杰, 雍岐龙, 王黎辉, 李明志. 耐蚀合金G3、G3-Z和825热加工性的研究[J]. 特殊钢, 2009, 30(5): 1-3.

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