Characterisation of tensile deformation behaviour of Fe-25Cr-35Ni-based alloy at high temperature

被引：0

作者：

Guo, Jingfeng ^{[1
,2
,4
,5
]}

Xu, Rengen ^{[2
,6
]}

Zhao, Li ^{[3
]}

Gao, Yang ^{[2
]}

Chen, Huan ^{[1
]}

机构：

[1] Yichun Univ, Coll Phys Sci & Technol, Yichun, Peoples R China

[2] Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai, Peoples R China

[3] Shanghai Acad Spaceflight Technol, Shanghai, Peoples R China

[4] Yichun Univ, Coll Phys Sci & Technol, Yichun 336000, Peoples R China

[5] Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China

[6] Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 09期

关键词：

Fe-25Cr-35Ni-based alloy; flow stress; tensile deformation; DRV; DRX; constitutive equation; NICKEL-BASED SUPERALLOY; INCONEL; 718; SUPERALLOY; NI-CR ALLOY; HOT DEFORMATION; MICROSTRUCTURAL EVOLUTION; DYNAMIC RECRYSTALLIZATION; BASE SUPERALLOY; CREEP DEFORMATION; FORMING BEHAVIOR; STRAIN-RATE;

D O I：

10.1080/02670836.2022.2163528

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe-25Cr-35Ni-based alloy tensile deformation behaviour was studied through tensile test at strain rates of 5 x 10(-4), 10(-3), 5 x 10(-3) and 10(-2) s(-1) from 900 to 1023 degrees C in this paper. The flow stress has a good correlation with testing temperature and strain rate. TEM and SEM were used to analyse the microstructure evolution. The results show that DRV and DRX are the important factors for reducing the flow stress during hot tensile deformation. The occurrence of DRV and DRX was confirmed by TEM micrographs in high temperature tensile deformation. The hyperbolic sine-type equation with deformation activation energy and temperature describes Fe-25Cr-35Ni-based alloy hot tensile deformation, and the deformation activation energy is 5.24 x 10(2) kJ mol(-1).

引用

页码：1146 / 1158

页数：13

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