STABLE HIGH-TEMPERATURE π PHASE IN THE Fe-Mo-Cr-C SYSTEM: CRYSTALLINE STRUCTURE AND PROPERTIES

被引：2
|
作者：
Velikanova, T. A. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, Kiev, Ukraine
来源：
POWDER METALLURGY AND METAL CERAMICS | 2017年 / 55卷 / 11-12期
关键词：
beta-Mn structure; congruent crystallization; Fe-Mo-Cr-C system; thermal expansion coefficient; microhardness; METASTABLE PHASES; ALLOYS;
D O I：
10.1007/s11106-017-9861-0
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A bulk sample of composition 51.9Fe11.1Mo26.3Cr10.7C (at.%) with beta-Mn structure is prepared and examined by X-ray diffraction, high-temperature differential thermal analysis, and light microcopy. The stable high-temperature pi phase of beta-Mn type crystallizes congruently from the liquid phase in the Fe-Mo-Cr-C system, the singular point being found at about 51.9Fe11.1Mo26.3Cr10.7C at.% and 1520 +/- 25 K. The structural characteristics of the pi phase are presented. Its thermal expansion coefficient is 14.32 center dot 10(-6) K-1 and microhardness 15.9 GPa. The pi phase is characterized by high chemical resistance to inorganic acids and their mixtures from room temperature up to the boiling point.
引用
收藏
页码：732 / 738
页数：7
相关论文
共 50 条
  • [1] Stable High-Temperature π Phase in the Fe–Mo–Cr–C System: Crystalline Structure and Properties
    T. A. Velikanova
    Powder Metallurgy and Metal Ceramics, 2017, 55 : 732 - 738
  • [2] High-Temperature Phases in the Fe-Mo-Cr-C System
    Velikanova, T. A.
    Zaslavskii, A. M.
    Kindrachuk, M. V.
    POWDER METALLURGY AND METAL CERAMICS, 2023, 61 (9-10) : 613 - 624
  • [3] High-Temperature Phases in the Fe–Mo–Cr–C System
    T. A. Velikanova
    A. M. Zaslavskii
    M. V. Kindrachuk
    Powder Metallurgy and Metal Ceramics, 2023, 61 : 613 - 624
  • [4] Stability of the α-Mn structure in rapidly solidified Fe-Mo-Cr-C alloys at high temperatures
    Velikanova, T. A.
    Karpets, M. V.
    Kuprin, V. V.
    POWDER METALLURGY AND METAL CERAMICS, 2013, 52 (3-4) : 212 - 222
  • [5] STABILITY OF THE β-Mn STRUCTURE IN RAPIDLY QUENCHED Fe-Mo-Cr-C ALLOYS AT HIGH TEMPERATURES
    Velikanova, T. A.
    Karpets, M. V.
    POWDER METALLURGY AND METAL CERAMICS, 2011, 50 (7-8) : 479 - 490
  • [6] HIGH-TEMPERATURE PHASE-EQUILIBRIA IN THE SYSTEM FE-MO-C
    GIRON, G
    DURANDCHARRE, M
    ZEITSCHRIFT FUR METALLKUNDE, 1995, 86 (01): : 15 - 21
  • [7] Phase Transformations in High-Temperature Alloys of the Ni – Cr – Fe – Nb System
    E. Z. Vintaikin
    G. I. Nosova
    Metal Science and Heat Treatment, 2002, 44 : 214 - 218
  • [8] Oxidation behavior and high-temperature tensile properties of Fe-9Cr-(Mo, Mo/Ni) alloys
    Wu, Qianlin
    Liu, Yu
    Zhang, Zhonghua
    Qi, Yameng
    Zhang, Chunxia
    Zheng, Haitian
    Xu, Yang
    CORROSION SCIENCE, 2021, 181
  • [9] High-Temperature Synthesis of Cr–Mo–Al–C Materials
    V. A. Gorshkov
    D. Yu. Kovalev
    O. D. Boyarchenko
    A. E. Sychev
    Inorganic Materials, 2021, 57 : 1300 - 1306
  • [10] FERRITIC FE-CR-TI-MO ALLOYS WITH A STRENGTHENING INTERMETALLIC PHASE FOR HIGH-TEMPERATURE APPLICATIONS
    SCHUMACHER, M
    SAUTHOFF, G
    ZEITSCHRIFT FUR METALLKUNDE, 1987, 78 (08): : 582 - 589
12345