Precipitation behavior of stainless steel weld overlay cladding exposed to a long-term thermal aging

被引：15

作者：

Cao, Xinyuan ^{[1
]}

Zhu, Ping ^{[2
]}

Wang, Wei ^{[1
]}

Liu, Tingguang ^{[1
]}

Lu, Yonghao ^{[1
]}

Shoji, Tetsuo ^{[3
]}

机构：

[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China

[2] Suzhou Nucl Power Res Inst Co Ltd, 1788 Xihuan Rd, Suzhou 215004, Peoples R China

[3] Tohoku Univ, Fracture & Reliabil Res Inst, Aoba Ku, 6-6-01 Aramaki Aoba, Sendai, Miyagi 9808579, Japan

来源：

MATERIALS CHARACTERIZATION | 2018年 / 137卷

关键词：

Thermal aging; Weld overlay cladding; G-phase; Silicide phase; G-PHASE PRECIPITATION; ATOM-PROBE; TEMPERATURE; FERRITE; KINETICS; DECOMPOSITION; CF8;

D O I：

10.1016/j.matchar.2018.01.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal aging behavior of stainless steel weld overlay cladding aged at 400 degrees C for 10,000 h was investigated. The results showed that the precipitates along the dislocation and within ferrite matrix contained the face centered cubic structural G-phase and silicide phase. Silicide phase, supposed to be (Fe, Mn)(3)Si phase, preferred to form with G-phase along the dislocations and within ferrite matrix. Silicide phase showed a cube-on-cube relationship with ferrite phase and G-phase. Heterogeneous distribution of elements within Ni-Mn-Si clusters was responsible for silicide phase formation during thermal aging process, and the corresponding precipitation behavior discrepancy at different forming sites (dislocations, ferrite matrix and phase boundary) was discussed.

引用

页码：77 / 83

页数：7

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