Influence of solution temperature on microstructure and high temperature creep properties of DZ125 nickel-base alloy

被引：5

作者：

Ning Tian ^{[1
]}

Zhang Shunke ^{[1
]}

Zhang Ping ^{[1
]}

Tian Sugui ^{[1
]}

Zhao Guoqi ^{[1
]}

Yu Fang ^{[1
]}

机构：

[1] Guizhou Univ Engn Sci, Sch Mech Engn, Bijie, Peoples R China

来源：

MATERIALS AT HIGH TEMPERATURES | 2021年 / 38卷 / 03期

关键词：

DZ125 nickel-base alloy; solution temperature; creep; deformation features; creep damage;

D O I：

10.1080/09603409.2021.1897945

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By performing solution treatment at various temperatures, creep property measurements, and microstructural observations, the influence of the solution temperature on the microstructure uniformity and high-temperature creep properties of the DZ125 nickel-based alloy were studied. The results showed that after the solution and aging treatment of the alloy under a relatively low temperature of 1230 degrees C, microstructure inhomogeneities in the dendrite/inter-dendrite regions appeared, and the coarse g ¢ phase and eutectic structure in the casted alloy were not removed. The processing and aging treatment of the alloy under a higher solution temperature of 1260 degrees C caused the coarse g ¢ phase and eutectic structure within the inter-dendritic area of the alloy to be eliminated, thus enabling the uniform distribution of the fine cubic g ¢ phase with a high-volume fraction between the dendrite/inter-dendrite regions and the enhancement of the creep performance of the alloy.

引用

页码：186 / 196

页数：11

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