Effect of ordered domains on the fracture toughness of high Co-Ni secondary hardening steel

被引：9

作者：

Duan, Huiping ^{[1
]}

Liu, Xiao ^{[1
]}

Ran, Xianzhe ^{[1
,2
]}

Li, Jia ^{[1
,2
,3
]}

Liu, Dong ^{[1
,2
,3
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, 37 Xueyuan Rd, Beijing 100191, Peoples R China

[2] Natl Engn Lab Addit Mfg Large Metall Components, 37 Xueyuan Rd, Beijing 100191, Peoples R China

[3] Minist Educ Laser Direct Mfg Large Metall Compone, Engn Res Ctr, 37 Xueyuan Rd, Beijing 100191, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 704卷

关键词：

Secondary hardening steel; Ordered domain; Fracture toughness; AERMET100; STEEL; MICROSTRUCTURE;

D O I：

10.1016/j.msea.2017.07.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanism on the sharp decrease in fracture toughness of the overaged high Co-Ni secondary hardening steel has been investigated. Experimental results showed that ordering process occurred and ordered domains were formed in the steel after overaging. The ordered domains will impede the movement of the dislocations and act as local brittle centers during deformation, which leads to the sharp decrease in the fracture toughness of the steel. Based on the effect of the reverted austenite films and ordered domains, a model was proposed to explain the behavior of the fracture toughness of the steel.

引用

页码：32 / 37

页数：6

共 11 条

[1] TRANSMISSION ELECTRON-MICROSCOPY EXAMINATION OF HARDENING AND TOUGHENING PHENOMENA IN AERMET-100 [J].

AYER, R ;

MACHMEIER, PM .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1993, 24 (09) :1943-1955

[2] On the characteristics of M2C carbides in the peak hardening regime of AerMet100 steel [J].

Ayer, R ;

Machmeier, P .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (03) :903-905

[3]

Hemphill R.M., 1992, High Strength, High Fracture Toughness Structural Alloy

[4] High resolution electron microscopy of precipitates in high Co-Ni alloy steel [J].

Hu, ZF ;

Wu, XF .

MICRON, 2003, 34 (01) :19-23

[5] Isothermal M2C carbide growth in ultrahigh strength high Co-Ni steels [J].

Lee, HM ;

Sohn, H ;

Yoo, CH .

SCRIPTA MATERIALIA, 1997, 37 (12) :1931-1937

[6] Microsegregation behavior during solidification and homogenization of AerMet100 steel [J].

Lippard, HE ;

Campbell, CE ;

Bjorklind, T ;

Borggren, U ;

Kellgren, P ;

Dravid, VP ;

Olson, GB .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1998, 29 (01) :205-210

[7] DEVELOPMENT OF A STRONG (1650MNM-2 TENSILE-STRENGTH) MARTENSITIC STEEL HAVING GOOD FRACTURE-TOUGHNESS [J].

MACHMEIER, PM ;

LITTLE, CD ;

HOROWITZ, MH ;

OATES, RP .

METALS TECHNOLOGY, 1979, 6 (AUG) :291-296

[8] Study on the microstructure and mechanical properties of Aermet 100 steel at the tempering temperature around 482 °C [J].

Shi, Xiaohui ;

Zeng, Weidong ;

Zhao, Qinyang ;

Peng, Wenwen ;

Kang, Chao .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 679 :184-190

[9] Microstructure analysis and yield strength simulation in high Co-Ni secondary hardening steel [J].

Wang, Chenchong ;

Zhang, Chi ;

Yang, Zhigang ;

Su, Jie ;

Weng, Yuqing .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 669 :312-317

[10] Analysis of fracture toughness in high Co-Ni secondary hardening steel using FEM [J].

Wang, Chenchong ;

Zhang, Chi ;

Yang, Zhigang ;

Su, Jie ;

Weng, Yuqing .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 646 :1-7

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