Mechanism of brittle cracking for high-purity Cr18Mo2 ferritic stainless steel

被引：0
|
作者：
Liu, B [1 ]
Liu, SY [1 ]
Wang, XZ [1 ]
机构：
[1] MMI, Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 1997年 / 4卷 / 02期
关键词：
ferritic stainless steel; embrittlement; cleavage;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A study has been carried out on the effect of continuous cooling with different rate from 1 200 degrees C on the brittleness of vacuum melted, extra-low interstitial Cr18Mo2 ferritic stainless steels. The ductile-brittle transition temperature was found to be the lowest after water cooling and the highest after furnace cooling. The increase of brittleness with cooling rate decrease is attributed to the formation of more nitrides. With the increase of titanium content the ductile-brittle transition temperature increases significantly. A low transition temperature occurred in steel containing 0.18 % Nb, and further increase of niobium brought about an increase of transition temperature. The transition temperature of ferritic stainless steel was raised severely by the precipitation of nitrides (Cr2N, Cr2Nb2N2 and TiN)and oxides (Al2O3) promoting brittle crack initiation.
引用
收藏
页码：33 / 37
页数：5
相关论文
共 50 条
  • [41] Effect of Laves Phase on High-Temperature Deformation and Microstructure Evolution in an 18Cr-2Mo-0.5Nb Ferritic Stainless Steel
    Ikeda, Ken-ichi
    Yamoah, Nana Kwame Gyan
    Reynolds, William T., Jr.
    Hamada, Jun-Ichi
    Murayama, Mitsuhiro
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2015, 46A (08): : 3460 - 3469
  • [42] Effect of Laves Phase on High-Temperature Deformation and Microstructure Evolution in an 18Cr-2Mo-0.5Nb Ferritic Stainless Steel
    Ken-ichi Ikeda
    Nana Kwame Gyan Yamoah
    William T. Reynolds
    Jun-ichi Hamada
    Mitsuhiro Murayama
    Metallurgical and Materials Transactions A, 2015, 46 : 3460 - 3469
  • [43] APPLICATIONS OF HIGH-PURITY METALS, PARTICULARLY IN STAINLESS STEEL FABRICATION
    CHAUDRON, G
    METALLURGIA ITALIANA, 1969, 61 (06): : 233 - &
  • [44] 475°C embrittlement of 00Cr30Mo2 ferritic stainless steel
    Liu, Chunming
    Cui, Wenfang
    Wang, Jianjun
    Lin, Renrong
    Kang T'ieh/Iron and Steel (Peking), 2002, 37 (01): : 47 - 51
  • [45] Hydrogen effects on mechanical properties of 18%Cr ferritic stainless steel
    Malitckii, E.
    Yagodzinskyy, Y.
    Lehto, P.
    Remes, H.
    Romu, J.
    Hanninen, H.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 700 : 331 - 337
  • [46] COMPATIBILITY OF HIGH-PURITY FE-(5 TO 15)CR-1MO FERRITIC STEELS IN A SODIUM ENVIRONMENT
    SUZUKI, T
    MUTOH, I
    JOURNAL OF NUCLEAR MATERIALS, 1987, 149 (01) : 41 - 50
  • [47] High-temperature oxidation behavior and mechanism of 18Cr-Mo-type ferritic stainless steel containing W and Ce in simulated automotive exhaust gas
    Zheng, Jia-hao
    Feng, Yang
    Zhao, Yang
    Chen, Li-qing
    JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2024,
  • [48] Effect of Mo and Cu on stress corrosion cracking of ferritic stainless steel in chloride media
    Li, X.
    Shu, J.
    Chen, L.
    Bi, H.
    CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2015, 50 (08) : 618 - 627
  • [49] ANODIC POLARIZATION BEHAVIOR OF HIGH-PURITY 13 AND 18 PER CENT CR STAINLESS-STEELS
    LIZLOVS, EA
    BOND, AP
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1975, 122 (06) : 719 - 722
  • [50] The influence of Cr and Mo on the formation of the passivation film on the surface of ferritic stainless steel
    Shen, Zhendong
    MATERIALS TODAY COMMUNICATIONS, 2024, 38
12345