Friction is widespread in almost every field in the oil and gas industry,and it is accompanied by huge energy losses and potential safety hazards.To deal with a series of questions in this regard,biomimetic surfaces h...Friction is widespread in almost every field in the oil and gas industry,and it is accompanied by huge energy losses and potential safety hazards.To deal with a series of questions in this regard,biomimetic surfaces have been developed over the past decades to significantly reduce economic losses.Presently,biomimetic surface engineering on different scales has been successfully introduced into related fields of the oil and gas industry,such as drill bits and the inner surfaces of pipes.In this review,we focused on the most recent and promising efforts reported toward the application of a biomimetic surface in oil and gas fields,indicating the necessity and importance of establishing this disciplinary study.Regarding the oil and gas industry,we mainly analyzed and summarized some important research results into the following three aspects:(i)applications in reducing the wear of exploration production equipment and its components,(ii)separation and drag release technologies in oil/gas storage and transportation,and(iii)functional coatings used in oil and gas development in oceans and polar regions.Finally,based on an in‐depth analysis of the development of biomimetic surface engineering in the fields of oil and gas,some conclusions and perspectives are also discussed.It is expected that biomimetic surface engineering can be used in oil and gas fields more widely and systematically,providing important contributions to green development in the near future.展开更多
TiNi alloys with high content Ni(52-55 at.%)are perfectly suitable for preparing wear-and corrosionresistant parts that service on the space station,spacecraft,and submarine,because of their superior superelasticity,h...TiNi alloys with high content Ni(52-55 at.%)are perfectly suitable for preparing wear-and corrosionresistant parts that service on the space station,spacecraft,and submarine,because of their superior superelasticity,high strength,and hardwearing.However,the fabrication of complicated Ni-rich TiNi parts by the traditional machining method often faces problems of poor precision,low efficiency,and high cost.In this work,we succeed in preparing an excellent Ti_(47)Ni_(53) alloy by selective laser melting(SLM),and thus,open a new way for the efficient and precise formation of complicated Ni-rich TiNi parts with superelasticity and hardwearing.An optimized processing window for compact parts without defects is reported.The elaborately fabricated Ti_(47)Ni_(53) alloy exhibited a breaking strain of 11%,a breaking stress of 2.0 GPa,a superelastic strain of 9%,and a better hardwearing than that of casting and quenched Ti_(47)Ni_(53) alloy.Besides,the microstructure,phase transformation,and deformation,as well as their influence mechanisms are investigated by in situ transmission electron microscope(TEM)and high-energy X-ray diffraction(HE-XRD).The results obtained are of significance for both fundamental research and technological applications of SLM-fabricated high Ni content TiNi alloys.展开更多
基金supported by the National Natural Science Foundation of China (No. 51675534)the Science Foundation of China University of Petroleum, Beijing (No. 2462017BJB06)
文摘Friction is widespread in almost every field in the oil and gas industry,and it is accompanied by huge energy losses and potential safety hazards.To deal with a series of questions in this regard,biomimetic surfaces have been developed over the past decades to significantly reduce economic losses.Presently,biomimetic surface engineering on different scales has been successfully introduced into related fields of the oil and gas industry,such as drill bits and the inner surfaces of pipes.In this review,we focused on the most recent and promising efforts reported toward the application of a biomimetic surface in oil and gas fields,indicating the necessity and importance of establishing this disciplinary study.Regarding the oil and gas industry,we mainly analyzed and summarized some important research results into the following three aspects:(i)applications in reducing the wear of exploration production equipment and its components,(ii)separation and drag release technologies in oil/gas storage and transportation,and(iii)functional coatings used in oil and gas development in oceans and polar regions.Finally,based on an in‐depth analysis of the development of biomimetic surface engineering in the fields of oil and gas,some conclusions and perspectives are also discussed.It is expected that biomimetic surface engineering can be used in oil and gas fields more widely and systematically,providing important contributions to green development in the near future.
基金financially supported by the National Key R&D Program of China(No.2018YFB1105100)the NSFC(Nos.51971244 and 51731010)+1 种基金the Advanced Structural Technology Foundation of China(No.2020-JCJQ-JJ-024)supported by the US Department of Energy,Office of Science and thr Office of Basic Energy Science,under Contract No.DE-AC02-06CH11357。
文摘TiNi alloys with high content Ni(52-55 at.%)are perfectly suitable for preparing wear-and corrosionresistant parts that service on the space station,spacecraft,and submarine,because of their superior superelasticity,high strength,and hardwearing.However,the fabrication of complicated Ni-rich TiNi parts by the traditional machining method often faces problems of poor precision,low efficiency,and high cost.In this work,we succeed in preparing an excellent Ti_(47)Ni_(53) alloy by selective laser melting(SLM),and thus,open a new way for the efficient and precise formation of complicated Ni-rich TiNi parts with superelasticity and hardwearing.An optimized processing window for compact parts without defects is reported.The elaborately fabricated Ti_(47)Ni_(53) alloy exhibited a breaking strain of 11%,a breaking stress of 2.0 GPa,a superelastic strain of 9%,and a better hardwearing than that of casting and quenched Ti_(47)Ni_(53) alloy.Besides,the microstructure,phase transformation,and deformation,as well as their influence mechanisms are investigated by in situ transmission electron microscope(TEM)and high-energy X-ray diffraction(HE-XRD).The results obtained are of significance for both fundamental research and technological applications of SLM-fabricated high Ni content TiNi alloys.
