Effects of Mo addition on microstructure of a 4th generation Ni-based single crystal superalloy

被引：1

作者：

Yuan Cheng ^{[1
]}

Xinbao Zhao ^{[1
]}

Wanshun Xia ^{[1
]}

Qinghai Pan ^{[1
]}

Quanzhao Yue ^{[1
]}

Yuefeng Gu ^{[1
]}

Ze Zhang ^{[1
]}

机构：

[1] Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University

来源：

Progress in Natural Science:Materials International | 2022年 / 32卷 / 06期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TG132.3 [特种热性质合金];

学科分类号：

080502 ;

摘要：

The effects of Mo addition on the microstructure of a 4th generation Ni-based single crystal superalloy were investigated.Mo addition significantly promoted elements Mo,W and Re partition into γ phase and enhanced absolute lattice misfit at 1100℃.The increase of Mo concentration from 2 wt% to 4 wt% also decreased the content of eutectic islands and the segregation ratios of other alloying elements in the as-cast state,especially Re and W.After heat treatments,the size of γ’ phase and width of γ channels decreased slightly with higher Mo content.More Mo additions slightly enhanced the segregation behavior of Re while reducing the segregation behavior of Mo.However,it revealed that the primary and secondary dendrite arm spacings were barely affected by Mo addition.

引用

页码：745 / 751

页数：7

共 18 条

[1] Inconsistent creep between dendrite core and interdendritic region under different degrees of elemental inhomogeneity in nickel-based single crystal superalloys [J].

Wanshun Xia ;

Xinbao Zhao ;

Liang Yue ;

Quanzhao Yue ;

Jiangwei Wang ;

Qingqing Ding ;

Hongbin Bei ;

Ze Zhang .

JournalofMaterialsScience&Technology, 2021, 92 (33) :88-97

[2] 固溶处理对一种第四代镍基单晶高温合金微观组织和偏析的影响 [J].

赵新宝 ;

岳亮 ;

夏万顺 ;

岳全召 ;

贝红斌 ;

韦华 ;

魏晓 ;

张泽 .

电子显微学报, 2020, 39 (05) :462-469

[3] Ru对一种高Cr镍基单晶高温合金凝固组织的影响 [J].

宁礼奎 ;

佟健 ;

刘恩泽 ;

谭政 ;

纪慧思 ;

郑志 .

金属学报, 2017, 53 (04) :423-432

[4]

Influence of Mo and Ta additions on solidification behavior of Ni3Al single crystal alloys[J]. Cheng Ai,Shusuo Li,Yunfei Liang,Shengkai Gong.Progress in Natural Science:Materials International. 2015(04)

[5]

Effect of substituting Mo for W on γ/γ′ partitioning behaviors of alloying elements in heat-treated second generation Ni based single crystal superalloys: An atom probe tomography study[J] . Ai Cheng,Li Qing,Zhang Jun,Su Haijun,Yang Wenchao,Liu Lin,Ru Yi,Zhang Heng,Song Yuanyuan,Chen Yongnan,Li Shusuo,Gong Shengkai.Intermetallics . 2021

[6]

Effect of ruthenium on microstructure and high-temperature creep properties of fourth generation Ni-based single-crystal superalloys[J] . W. Song,X.G. Wang,J.G. Li,L.H. Ye,G.C. Hou,Y.H. Yang,J.L. Liu,J.D. Liu,W.L. Pei,Y.Z. Zhou,X.F. Sun.Materials Science ＆ Engineering A . 2020 (C)

[7]

Multiphase-field and experimental study of solidification behavior in a nickel-based single crystal superalloy[J] . Cong Yang,Qingyan Xu,Xianglin Su,Baicheng Liu.Acta Materialia . 2019

[8]

Coarsening behavior of γ′ precipitates of single crystal Ni-based superalloys during long-term exposure[J] . Yanming Pan,Longfei Zhang,Zaiwang Huang,Liang Jiang.Materials Letters . 2019

[9]

Atomic arrangement and formation of planar defects in the μ phase of Ni-base single crystal superalloys[J] . Shiyu Ma,Xueqiao Li,Jianxin Zhang,Jide Liu,Pan Li,Youjian Zhang,Huixin Jin,Wenyang Zhang,Yizhou Zhou,Xiaofeng Sun,Qing Zhang,Yanhui Chen,Shengcheng Mao.Journal of Alloys and Compounds . 2018

[10]

The effect of phase chemistry on the extent of strengthening mechanisms in model Ni-Cr-Al-Ti-Mo based superalloys[J] . A.J. Goodfellow,E.I. Galindo-Nava,K.A. Christofidou,N.G. Jones,C.D. Boyer,T.L. Martin,P.A.J. Bagot,M.C. Hardy,H.J. Stone.Acta Materialia . 2018

← 1 2 →