EFFECTS OF SULPHUR ON HOT DUCTILITY OF LOW-CARBON STEEL AUSTENITE.

被引：0
|
作者：
Yasumoto, K. [1 ]
Maehara, Y. [1 ]
Ura, S. [1 ]
Ohmori, Y. [1 ]
机构：
[1] Sumitomo Metal Industries Ltd,, Central Research Lab, Amagasaki, Jpn, Sumitomo Metal Industries Ltd, Central Research Lab, Amagasaki, Jpn
来源：
Materials Science and Technology | 1985年 / 1卷 / 02期
关键词：
IRON AND STEEL METALLOGRAPHY - Precipitation - SULFUR;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The hot ductility of low-carbon austenite has been studied in order to reveal the hot-cracking mechanism related to sulfur segregaton and sulfide precipitaton during solution treatment and deformation. Ductility was greatly reduced during high-strain-rate tensile deformation in the temperature range 1073-1373 K. Fracture occurred via a typical intergranular mode, characterized by both shallow dimples caused by microvoid coalescence and rather smooth facets caused by intergranular decohesion. The former morphology is a result of the dense precipitation of sulfides, identified as Fe-rich (Fe, Mn)S, on the austenite grain boundaries. Hot ductility is improved on decreasing the solution-treatment temperature, on decreasing the cooling rate from high solution temperatures, and on isothermal holding at the deformation temperature before starting the tensile test.
引用
收藏
页码：111 / 116
相关论文
共 50 条
  • [21] Effect of Boron on the Hot Ductility of Resulfurized Low-Carbon Free-Cutting Steel
    Liu, Hai-tao
    Chen, Wei-qing
    METAL SCIENCE AND HEAT TREATMENT, 2015, 57 (5-6) : 268 - 273
  • [22] Effect of Boron on the Hot Ductility of Low-Carbon Nb-Ti-Microalloyed Steel
    Shi, Cheng-bin
    Liu, Wei-jian
    Li, Jing
    Yu, Lu
    MATERIALS TRANSACTIONS, 2016, 57 (05) : 647 - 653
  • [23] HOT DUCTILITY AND FRACTURE OF AN EUTECTOID CARBON-STEEL IN THE AUSTENITE RANGE
    OHASHI, M
    ENDO, T
    SAKAI, T
    TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1988, 28 (04) : 337 - 337
  • [24] ANNEALING TWINS IN DEFORMED AUSTENITE OF A LOW-CARBON STEEL
    INAGAKI, H
    ZEITSCHRIFT FUR METALLKUNDE, 1990, 81 (03): : 174 - 180
  • [25] THE ISOTHERMAL DECOMPOSITION OF AUSTENITE IN A MICROALLOYED LOW-CARBON STEEL
    BRITTON, JR
    THOMPSON, SW
    HOWELL, PR
    JOURNAL OF METALS, 1982, 35 (12): : A73 - A73
  • [26] Abnormal growth of austenite grain of low-carbon steel
    Yu, QB
    Sun, Y
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 420 (1-2): : 34 - 38
  • [27] INHOMOGENEITY OF MICROSTRAIN OF LOW-CARBON STEEL IN AUSTENITE REGION
    DRYUKOVA, IN
    TOMENKO, YS
    PASHCHENKO, AA
    ZAVODSKAYA LABORATORIYA, 1975, 41 (06): : 730 - 732
  • [28] Decomposition of Supercooled Austenite in Low-Carbon Pipe Steel
    Poletskov P.P.
    Denisov S.V.
    Nikitenko O.A.
    Chukin D.M.
    Gushchina M.S.
    Steel in Translation, 2019, 49 (03) : 174 - 178
  • [29] DYNAMIC TRANSFORMATION OF AUSTENITE TO FERRITE IN LOW-CARBON STEEL
    PANDI, R
    YUE, S
    ISIJ INTERNATIONAL, 1994, 34 (03) : 270 - 279
  • [30] HOT DUCTILITY AND DEFORMATION RESISTANCE IN HIGH-SPEED TENSILE TEST OF LOW-CARBON STEEL
    AIZAWA, A
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1985, 71 (04): : S166 - S166
12345