Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: An in situ synchrotron study

Ru, Yadong; Yu, Kaiyuan; Dai, Shuangqiang; Guo, Fangmin; Hao, Shijie; Ren, Yang; Cui, Lishan

doi:10.1016/j.jallcom.2018.01.154

Title: Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: An in situ synchrotron study

Abstract

In this paper, a Cu/carbon-steel nanocomposite is fabricated by pressing, rolling and wire drawing. The average layer thickness is about 69 nm for steel and 67 nm for Cu. Cu suppresses the growth of prior austenite at elevated temperature, and thus the steel layer thickness barely increases during austenization. Subsequent quenching results in a large amount of metastable retained austenite within the steel layers. The martensitic transformation behavior of the composite during plastic deformation is investigated by in situ tensile test using synchrotron X-ray diffraction at room temperature. It is found that the retained austenite, rather than Cu, dominates the plastic deformation of the nanocomposite. Finally, in situ results verify that the transformation of retained austenite initiates in a manner of Lüders-like band due to stress-induced martensitic transformation, followed by strain-induced martensitic transformation until fracture.

Authors:

Ru, Yadong ^[1]; Yu, Kaiyuan ^[1]; Dai, Shuangqiang ^[1]; Guo, Fangmin ^[1]; Hao, Shijie ^[1]; Ren, Yang ^[2]; Cui, Lishan ^[3]

China Univ. of Petroleum, Beijing (China). Dept. of Materials Science and Engineering
Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
China Univ. of Petroleum, Beijing (China). Dept. of Materials Science and Engineering. Beijing Key Lab. of Failure, Corrosion, and Protection of Oil/Gas Facilities

Publication Date:: Fri Jan 12 00:00:00 EST 2018

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1471527

Grant/Contract Number:: AC02-06CH11357; 51501225; 1731010; 11474362

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Alloys and Compounds

Additional Journal Information:: Journal Volume: 741; Journal ID: ISSN 0925-8388

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; In situ synchrotron X-ray diffraction; Luders-like; Martensitic transformation; Retained austenite

Citation Formats


                    Ru, Yadong, Yu, Kaiyuan, Dai, Shuangqiang, Guo, Fangmin, Hao, Shijie, Ren, Yang, and Cui, Lishan. Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: An in situ synchrotron study.  United States: N. p., 2018. 
Web.  doi:10.1016/j.jallcom.2018.01.154.

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                    Ru, Yadong, Yu, Kaiyuan, Dai, Shuangqiang, Guo, Fangmin, Hao, Shijie, Ren, Yang, & Cui, Lishan. Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: An in situ synchrotron study.  United States.  https://doi.org/10.1016/j.jallcom.2018.01.154

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                    Ru, Yadong, Yu, Kaiyuan, Dai, Shuangqiang, Guo, Fangmin, Hao, Shijie, Ren, Yang, and Cui, Lishan. Fri .  
"Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: An in situ synchrotron study".  United States.  https://doi.org/10.1016/j.jallcom.2018.01.154.  https://www.osti.gov/servlets/purl/1471527.

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@article{osti_1471527,

  title        = {Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: An in situ synchrotron study},

  author       = {Ru, Yadong and Yu, Kaiyuan and Dai, Shuangqiang and Guo, Fangmin and Hao, Shijie and Ren, Yang and Cui, Lishan},

  abstractNote = {In this paper, a Cu/carbon-steel nanocomposite is fabricated by pressing, rolling and wire drawing. The average layer thickness is about 69 nm for steel and 67 nm for Cu. Cu suppresses the growth of prior austenite at elevated temperature, and thus the steel layer thickness barely increases during austenization. Subsequent quenching results in a large amount of metastable retained austenite within the steel layers. The martensitic transformation behavior of the composite during plastic deformation is investigated by in situ tensile test using synchrotron X-ray diffraction at room temperature. It is found that the retained austenite, rather than Cu, dominates the plastic deformation of the nanocomposite. Finally, in situ results verify that the transformation of retained austenite initiates in a manner of Lüders-like band due to stress-induced martensitic transformation, followed by strain-induced martensitic transformation until fracture.},

  doi          = {10.1016/j.jallcom.2018.01.154},

  journal      = {Journal of Alloys and Compounds},

  number       = ,

  volume       = 741,

  place        = {United States},

  year         = {Fri Jan 12 00:00:00 EST 2018},

  month        = {Fri Jan 12 00:00:00 EST 2018}

}

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https://doi.org/10.1016/j.jallcom.2018.01.154

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Figure 1: Fabrication methods of the Cu/carbon steel nanocomposite.

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