Investigation of Microstructures and Mechanical Properties of T92 Martensitic Steel/Super304 Austenitic Steel Weld Joints Made with Three Welding Consumables

• Autorzy: Liang Z. , Gui Y. , Zhao Q.

Identyfikatory

DOI

10.24425/123798

• Języki publikacji: EN

Abstrakty

EN

The microstructures and mechanical properties of T92 martensitic steel/Super304 austenitic steel weld joints with three welding consumables were investigated. Three types of welding materials ERNiCr-3, ERNiCrCoMo-1and T-304H were utilized to obtain dissimilar welds by using gas tungsten arc weld (GTAW). The results show that heat affect zone (HAZ) of T92 steel consists of coarse-grained and fine-grained tempered martensites. The microstructures of joints produced from ERNiCrCoMo-1 consist of equiaxed dendrite and columnar dendrite grains, which are more complicated than that of ERNiCr-3. In the tensile tests, joints constructed from ERNiCrCoMo-1 and T-304H met the ASME standard. The highest fracture energy was observed in specimens with the welding material ERNiCrCoMo-1. Ni content in weld seam of ERNiCrCoMo-1 was highest, which was above 40%. In conclusion, the nickel alloy ERNiCrCoMo-1 was the most suitable welding material for joints produced from T92 martensitic steel/Super304 austenitic steel.

Słowa kluczowe

EN

dissimilar welding; welding material; microstructures; mechanical properties

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1249--1256
• Opis fizyczny: Bibliogr. 26 poz., rys., tab., wykr.

Twórcy

autor

Liang Z.

• Xi’an Jiaotong University, School of Energy and Powerengineering, Key Laboratory of Thermal Fluid Science And Engineering of Moe, XI’AN 710049, Pr China

autor

Gui Y.

• Xi’an Jiaotong University, School of Energy and Powerengineering, Key Laboratory of Thermal Fluid Science And Engineering of Moe, Xi’an 710049, PR China

autor

Zhao Q.

• Xi’an Jiaotong University, School of Energy and Powerengineering, Key Laboratory of Thermal Fluid Science And Engineering of Moe, Xi’an 710049, PR China

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Uwagi

EN

1. This work was financially supported by the National Key Research and Development Program of China (No. 2016YFC0801904) and the Fundamental Research Funds for the Central Universities the Postdoctoral Funds (2017M620451, 2018T111062), the Shaanxi Province Postdoctoral Research Grant (2017BSHEDZZ41). We would like to thank anonymous reviewers for their helpful comments and suggestions in improving the paper.

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).