The characterization of Fe-rich phases in a high-pressure die cast hypoeutectic aluminum-silicon alloy

被引：40
作者：
Jiao, X. Y. [1 ]
Liu, C. F. [1 ]
Guo, Z. P. [1 ,2 ]
Tong, G. D. [3 ]
Ma, S. L. [3 ]
Bi, Y. [3 ]
Zhang, Y. F. [3 ]
Xiong, S. M. [1 ,2 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Key Lab Adv Mat Proc Technol, Beijing 100084, Peoples R China
[3] China FAW Foundary Co LTD, Changchun 130011, Jilin, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2020年 / 51卷
基金：
中国国家自然科学基金;
关键词：
Hypoeutectic Al-10Si; Fe-rich phases; Fracture morphology; High pressure die casting; AL-SI ALLOYS; MECHANICAL-PROPERTIES; IN-SITU; MICROSTRUCTURE; IRON; NUCLEATION; EVOLUTION; MN; REFINEMENT; FRACTURE;
D O I：
10.1016/j.jmst.2020.02.040
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Both microstructural characteristics and fracture behavior of Fe-rich phases in a high-pressure die-cast hypoeutectic Al-Si alloy were investigated. Attention was focused on the morphology and formation mechanism of Fe-rich phases, together with their influence on fracture. Results show that primary Fe-rich phases exhibited in blocky shape precipitated from liquid while secondary Fe-rich phase in a large net shape was distributed along eutectic boundary participating in a ternary eutectic reaction. Through synchrotron X-ray tomography characterization, three Fe-rich phases with different morphologies, i.e., polyhedral shape, fine compact shape and Chinese script-type shape were extracted along the radial direction. Lower slow-shot speed promoted the polyhedral Fe-rich phase to precipitate in slow-shot sleeve while decreased the formation of fine compact and Chinese script-type Fe-rich phases in die cavity. Because of a worse deformation compatibility, polyhedral Fe-rich phases fractured and became stress concentration sources before the failure of the casting. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
引用
收藏
页码：54 / 62
页数：9
相关论文
共 31 条
  • [21] Microstructural features induced by spray processing and hot extrusion of an Al-18% Si-5% Fe-1.5% Cu alloy
    Srivastava, AK
    Srivastava, VC
    Gloter, A
    Ojha, SN
    [J]. ACTA MATERIALIA, 2006, 54 (07) : 1741 - 1748
  • [22] In situ study of nucleation and growth of the irregular α-Al/β-Al5FeSi eutectic by 3-D synchrotron X-ray microtomography
    Terzi, S.
    Taylor, J. A.
    Cho, Y. H.
    Salvo, L.
    Suery, M.
    Boller, E.
    Dahle, A. K.
    [J]. ACTA MATERIALIA, 2010, 58 (16) : 5370 - 5380
  • [23] On the formation mechanism of the ring-like microstructure of high-pressure die-cast A390 alloy
    Wang, J.
    Guo, Z.
    Jiao, X. Y.
    Xiong, S. M.
    [J]. MATERIALS CHARACTERIZATION, 2018, 140 : 179 - 188
  • [24] On the growth mechanism of the primary silicon particle in a hypereutectic Al-20 wt% Si alloy using synchrotron X-ray tomography
    Wang, J.
    Guo, Z.
    Song, J. L.
    Hu, W. X.
    Li, J. C.
    Xiong, S. M.
    [J]. MATERIALS & DESIGN, 2018, 137 : 176 - 183
  • [25] Structural evolution of Al-8%Si hypoeutectic alloy by ultrasonic processing
    Wang, J. Y.
    Wang, B. J.
    Huang, L. F.
    [J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2017, 33 (11) : 1235 - 1239
  • [26] Microstructure and mechanical properties of hypoeutectic Al-Si composite reinforced with TiCN nanoparticles
    Wang, K.
    Jiang, H. Y.
    Wang, Y. X.
    Wang, Q. D.
    Ye, B.
    Ding, W. J.
    [J]. MATERIALS & DESIGN, 2016, 95 : 545 - 554
  • [27] The effect of atmosphere on the structure and properties of a selective laser melted Al-12Si alloy
    Wang, X. J.
    Zhang, L. C.
    Fang, M. H.
    Sercombe, T. B.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 597 : 370 - 375
  • [28] Heterogeneous Nucleation of α-Al Grain on Primary α-AlFeMnSi Intermetallic Investigated Using 3D SEM Ultramicrotomy and HRTEM
    Yang, Wenchao
    Ji, Shouxun
    Zhou, Xiaorong
    Stone, Ian
    Scamans, Geoff
    Thompson, George E.
    Fan, Zhongyun
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (09): : 3971 - 3980
  • [29] Formation of intermetallic δ phase in Al-10Si-0.3Fe alloy investigated by in-situ 4D X-ray synchrotron tomography
    Yu, J. M.
    Wanderka, N.
    Rack, A.
    Daudin, R.
    Boller, E.
    Markoetter, H.
    Manzoni, A.
    Vogel, A.
    Manke, I.
    Banhart, J.
    [J]. ACTA MATERIALIA, 2017, 129 : 194 - 202
  • [30] REMOVAL OF IRON FROM ALUMINUM: A REVIEW
    Zhang, Lifeng
    Gao, Jianwei
    Damoah, Lucas Nana Wiredu
    Robertson, David G.
    [J]. MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW, 2012, 33 (02): : 99 - 157
1234