EFFECT OF HEAT TREATMENT AND STRAINING RATE ON FRACTURE AND CORROSION OF Zn-22 Al SUPERPLASTIC ALLOY.

被引:0
|
作者
Ismail, Mohamed I.
机构
来源
Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques | 1979年 / 70卷 / 05期
关键词
D O I
暂无
中图分类号
学科分类号
摘要
The effect of heat treatment (annealing at 250 to 400 degree C for 1 h, followed by water quenching) and the rate of straining (4. 2 multiplied by 10** minus **4 minus 4. 1 multiplied by 10** minus **1s** minus **1) at 18 degree C on mechanical properties and corrosion of Zn-22Al in sulfuric acid were studied. The results obtained showed that there is a critical rate of straining at which the specimen fracture occurs at lower tensile strain levels although the ultimate tensile strength increases with increasing straining rate. The hardness of heat-treated specimens increased with the heat treatment temperature. The corrosion of heat-treated specimens in sulfuric acid demonstrated that there is a critical heat treatment temperature (about 330 degree C) which results in minimum corrosion. The corrosion rate in sulfuric acid increases at a higher rate in the concentration range of 0. 1-1 N sulfuric acid.
引用
收藏
页码:337 / 340
相关论文
共 50 条
  • [41] Topographic Data on Structural Changes During Superplastic Deformation of Zn plus 22% Al Alloy.
    Novikov, I.I.
    Portnoi, V.K.
    Terent'eva, T.E.
    Izvestiya Vysshikh Uchebnykh Zavedenij. Tsvetnaya Metallurgiya, 1975, (03): : 127 - 130
  • [42] Injection molding of ribbed plastic plates with a superplastic Zn-22% Al sheet
    Yang, SY
    Parng, SH
    ADVANCES IN POLYMER TECHNOLOGY, 2001, 20 (03) : 216 - 225
  • [43] Superplastic deformation behavior in commercial and high purity Zn-22 Pct Al
    Chaudhury, Prabir K.
    Sivaramakrishnan, V.
    Mohamed, Farghalli A.
    Metallurgical transactions. A, Physical metallurgy and materials science, 1988, 19 A (11): : 2741 - 2752
  • [44] Effect of temperature on the cavity Nucleation rate for fine-grained Zn-22 wt.% Al alloy
    Tanaka, Tsutomu
    Takigawa, Yorinobu
    Higashi, Kenji
    SCRIPTA MATERIALIA, 2008, 58 (08) : 643 - 646
  • [45] On applying superplastic Zn-22 wt.% Al alloy with nanocrystalline grains to general residential seismic dampers
    Tanaka, T
    Chung, SW
    Chaing, LF
    Makii, K
    Kushibe, A
    Kohzu, M
    Higashi, K
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 410 : 109 - 113
  • [46] Experimental study on multi-pass dieless drawing process of superplastic Zn-22%Al alloy microtubes
    Furushima, T.
    Manabe, K.
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 187 (236-240) : 236 - 240
  • [47] Microstructure and deformation in the spray deposited Zn-22% Al alloy
    Xun, Yuwei
    Mohamed, Farghalli A.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 432 (1-2): : 261 - 268
  • [48] Superplastic behavior of Zn-22%Al containing nano-scale dispersion particles
    Xun, YW
    Mohamed, FA
    ACTA MATERIALIA, 2004, 52 (15) : 4401 - 4412
  • [49] EVIDENCE FOR CAVITATION IN SUPERPLASTIC ZN-22 PCT AL OF VERY HIGH-PURITY
    MILLER, DA
    LANGDON, TG
    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1978, 9 (11): : 1688 - 1690
  • [50] CREEP AT LOW STRESS LEVELS IN SUPERPLASTIC ZN-22 PER CENT AL EUTECTOID
    MOHAMED, FA
    LANGDON, TG
    ACTA METALLURGICA, 1975, 23 (01): : 117 - 124