在高緻密鎂、鋁合金壓鑄成形技術、壓鑄過程宏/微觀數值模拟以及鎂合金熔體保護等方面做出突出貢獻。作為負責人承擔及完成國家重大專項“先進成形制造全流程建模與仿真創新平台”課題（2012ZX04012-011，2012-2016）1項，國家重大專項課題子課題1項，國家科技支撐項目專題2項， 863 計劃1 項，973 計劃專題1 項，國家自然科學基金項目3 項，橫向及國際合作項目多項。
獲授權國家發明專利 10 項、計算機軟件注冊權登記 6 項，出版專著出版專著1部，參編專著1部，主編出版材料工程大典第19卷第6篇。
發表學術論文260餘篇，被SCI網絡版(SCI－EXPANDED)收錄98篇。被工程索引網絡版(Ei CompendexWeb)收錄155篇。
代表性論文如下：
1.Wang J, Guo Z, Xiong S M. Characterization of the morphology of primary silicon particles using synchrotron X-ray tomography. Materials Characterization, 123:354-359(2017)
2.Yang, M.,Xiong, S. M.,Guo, Z., Effect of different solute additions on dendrite morphology and orientation selection in cast binary magnesium alloys, Acta Materialia, Vol.112, pp.261-272(2016)
3.Bi, C., Xiong, S. M., Li, X. B., Guo, Z. P., Development of a Fluid-Particle Model in Simulating the Motion of External Solidified Crystals and the Evolution of Defect Bands in High-Pressure Die Casting, Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, Vol. 47, No. 2, pp. 939-947(2016)
4.Li, X., Xiong, S. M., Guo, Z.,On the tensile failure induced by defect band in high pressure die casting of AM60B magnesium alloy,Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,Vol. 674, pp.687-695(2016) .
5.Li, X., Xiong, S. M., Guo, Z.,Failure behavior of high pressure die casting AZ91D magnesium alloy, Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,Vol. 672, pp.216-225(2016).
6.Li, X., Xiong, S. M., Guo, Z., Improved mechanical properties in vacuum-assist high-pressure die casting of AZ91D alloy, Journal of Materials Processing Technology, Vol. 231, pp.1-7(2016)
7.Li, X., Xiong, S. M.,Guo, Z.,On the porosity induced by externally solidified crystals in high-pressure die-cast of AM60B alloy and its effect on crack initiation and propagation, Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, Vol. 633, pp.35-41(2015)
8.Yang, M.,Xiong, S. M.,Guo, Z., Characterisation of the 3-D dendrite morphology of magnesium alloys using synchrotron X-ray tomography and 3-D phase-field modelling, Acta Materialia, Vol.92, pp.8-17(2015)
9.Guo, Z.;Mi, J.;Xiong, S.;Grant, P. S., Phase field study of the tip operating state of a freely growing dendrite against convection using a novel parallel multigrid approach, Journal of Computational Physics, Vol. 257,pp.278-297,JAN 15 2014
10.G.J.Cha, J.G. Li, S.M. Xiong, Z.Q. Han, ZQ, Fracture behaviors of A390 aluminum cylinder liner alloys under static loading, Journal of Alloys and Compounds, 550, 370-379(2013)
11.X.F. Wang, S.M. Xiong, Oxidation behavior of molten magnesium in atmospheres containing SO2 and air in a sealed furnace, Corrosion Science, 66, 300-307(2013)
12.Xian-Fei Wang, Shou-Mei Xiong, Characterization of the Surface Film Formed on Molten AZ91D Magnesium Alloy in Atmospheres Containing SO2, Metallurgical and Materials Transactions A, Volume 43, Issue 11, pp 4406-4413(2012).
13.Wang, Xian-Fei,Xiong, Shou-Mei, Characterization of surface films formed on molten magnesium in atmospheres containing SO2, Materials Chemistry and Physics, v 135, n 2-3, p 541-548(2012)
14.Xian-Fei Wang, Shou-Mei Xiong, Oxidation behavior of molten magnesium in atmospheres containing SO2, Corrosion Science, 53(12), 4050-4057(2011).
15.Song, Jie;Xiong, Shou-Mei.The correlation between as-cast and aged microstructures of high-vacuum die-cast Mg-9Al-1Zn magnesium alloy, Journal of Alloys and Compounds, Vol. 509, No. 5, p 1866-1869(2011)