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Microstructures And Elements Distribution In T he Transition Zone Of Carbon Steel And Stainless Steel Welds

Author

Listed:
  • T.Nhung Le

    (Vietnam Maritime University, Vietnam)

  • M.Khanh Pham

    (Hanoi University of Science and Technology)

  • A.Tuan Hoang

    (Ho Chi Minh city University of Transport)

  • D.Nam Nguyen

    (Vietnam Maritime University, Vietnam)

Abstract

The change of microstructures and elements distribution around the carbon fusion line in carbon steel and stainless steel welds were investigated by means of optical microcopy (OM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The chemical composition profiles of the interface lay varied continuously from the base metal to the weld zone of 80µm width. This study showed that the microstructures and properties of this zone depended on local composition and cooling rate. Fully Martensitic layer with 5µm of width was observed along the fusion line. Then, a fully Austenitic zone spreads over 20µm and a two-phase γ + δ microstructure typical of a stainless steel was documented from the fusion line to the weld metal. The hardness value of Martensitic is the highest and recording 243 HV. The results may be used to overcome the limitations of the weld structure zone between carbon steel and stainless steel for application in the shipbuilding industry.

Suggested Citation

  • T.Nhung Le & M.Khanh Pham & A.Tuan Hoang & D.Nam Nguyen, 2018. "Microstructures And Elements Distribution In T he Transition Zone Of Carbon Steel And Stainless Steel Welds," Journal of Mechanical Engineering Research & Developments (JMERD), Zibeline International Publishing, vol. 41(3), pages 27-31, September.
    • Handle: RePEc:zib:zjmerd:v:41:y:2018:i:3:p:27-31
    DOI: 10.26480/jmerd.03.2018.27.31
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    Cited by:

    1. Minh Quang Chau, 2019. "A Study On The Factors Affecting The Flare Of The Weld When Welding The Steel Wire ," Journal of Mechanical Engineering Research & Developments (JMERD), Zibeline International Publishing, vol. 42(3), pages 71-75, April.
    2. V.V Le & D.N Nguyen & T.T.V Tran & V.B Nguyen, 2019. "Design A Technical Process Of Thermal Spray Applied To The Crankshaft Rehabilitation Of Ship," Journal of Mechanical Engineering Research & Developments (JMERD), Zibeline International Publishing, vol. 42(1), pages 56-60, January.
    3. Nguyen Duong Nam & Nguyen Anh Xuan & Nguyen Van Bach & Le Thi Nhung & Le Thi Chieu, 2019. "Control Gas Nitriding Process: A Review," Journal of Mechanical Engineering Research & Developments (JMERD), Zibeline International Publishing, vol. 42(1), pages 17-25, January.
    4. Quoc Viet Pham & Van Hai Nguyen, 2019. "Proposal Of Some Advanced Technology Methods In The Assembly Of The Shaft System - Main Engine On The Small Cargo Ships," Journal of Mechanical Engineering Research & Developments (JMERD), Zibeline International Publishing, vol. 42(1), pages 81-84, February.

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