Influence of Mo Additions on the Mechanical Properties of Cast Duplex Stainless Steels before and after Thermal Aging

被引：4

作者：

Li, Shilei ^{[1
]}

Wang, Yanli ^{[1
]}

Wang, Xitao ^{[2
,3
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China

[3] Qilu Univ Technol, Adv Mat Inst, Shandong Prov Key Lab High Strength Lightweight M, Shandong Acad Sci, Jinan 250353, Shandong, Peoples R China

来源：

METALS | 2019年 / 9卷 / 03期

基金：

中国国家自然科学基金;

关键词：

duplex stainless steels; Mo content; thermal aging; impact; nanoindentation; FE-CR ALLOYS; SPINODAL DECOMPOSITION; COMPUTER-MODELS; ATOMIC-LEVEL; PHASE-SEPARATION; TEMPERATURE; BEHAVIOR; EMBRITTLEMENT; PROBE;

D O I：

10.3390/met9030295

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of Mo additions on the mechanical properties of cast duplex stainless steel (CDSS) before and after thermal aging was investigated using a series of model alloys with different Mo contents ranging from 0 to 1.75 wt%. By increasing Mo content, the content, morphology, and distribution of ferrite in CDSS change significantly. After thermal aging at 400 degrees C for 3000 h, the impact properties of all CDSS specimens obviously decline, and their hardness values in ferrite significantly increase. The impact energies of the aged CDSS decline, and the proportion of cleavage features significantly increases with Mo content increasing. The spinodal decomposition kinetics in ferrite is not significantly affected by the Mo contents. High content and interconnected ferrite will lead to the severe embrittlement in CDSS after thermal aging.

引用

页数：9

共 50 条

[21] Mechanical properties of austenitic and duplex stainless steels
Nordberg, H.
1600, (86):
[22] Effects of ferrite content on the mechanical properties of thermal aged duplex stainless steels
Li, Shilei
Wang, Yanli
Wang, Xitao
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 625 : 186 - 193
[23] Microstructure change of duplex stainless steels after thermal aging and electron beam irradiation
Suzuki, Yuta
Hashimoto, Naoyuki
NUCLEAR MATERIALS AND ENERGY, 2018, 15 : 208 - 213
[24] Effect of thermal aging on corrosion behavior of duplex stainless steels
Murkute, Pratik
Sarfo, Kofi Oware
McGieson, Isak
Santala, Melissa K.
Zhang, Yongfeng
Arnadottir, Liney
Tucker, Julie D.
Isgor, O. Burkan
SN APPLIED SCIENCES, 2022, 4 (04):
[25] Detection of thermal aging of duplex stainless steels with squid magnetometer
Isobe, Y
Aoki, T
MATERIALS SCIENCE RESEARCH INTERNATIONAL, 1999, 5 (01): : 51 - 56
[26] Effect of thermal aging on corrosion behavior of duplex stainless steels
Pratik Murkute
Kofi Oware Sarfo
Isak McGieson
Melissa K. Santala
Yongfeng Zhang
Liney Árnadóttir
Julie D. Tucker
O. Burkan Isgor
SN Applied Sciences, 2022, 4
[27] EFFECT OF LONG TERM AGING ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CAST AUSTENITIC STAINLESS STEELS
Li Shilei
Wang Yanli
Li Shuxiao
Wang Xitao
ACTA METALLURGICA SINICA, 2010, 46 (10) : 1186 - 1191
[28] FRACTURE TOUGHNESS AND DEFORMATION BEHAVIOR OF CAST AUSTENITIC STAINLESS STEELS AFTER THERMAL AGING
Chen, Yiren
Chen, Wei-Ying
Xu, Chi
Zhang, Xuan
Li, Zhangbo
Yang, Yong
Rao, Appajosula S.
Alexandreanu, Bogdan
Natesan, Krishnamurti
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, 2017, VOL 1A, 2017,
[29] Effects of thermal aging on microstructure and mechanical properties duplex stainless steel weldments
El Koussy, MR
El Mahallawi, IS
Khalifa, W
Al Dawood, MM
Bueckins, M
MATERIALS SCIENCE AND TECHNOLOGY, 2004, 20 (03) : 375 - 381
[30] Mechanical properties of powder metallurgy duplex stainless steels
Hamalainen, E
Laitinen, A
Hanninen, H
Liimatainen, J
MATERIALS SCIENCE AND TECHNOLOGY, 1997, 13 (02) : 103 - 109

← 1 2 3 4 5 →