2013/09至今，中国科学院金属研究所，材料环境腐蚀研究中心，副研究员；

　　2008/09-2012/06，中国科学院金属研究所，博士学位；

　　2006/07-2013/08，中国科学院金属研究所，材料环境腐蚀研究中心，助理研究员；

　　2004/09-2006/07，机械科学院武汉材料保护研究所，硕士学位；

　　2001/09-2003/07，沈阳联汇石化有限公司，总经理助理；

　　1998/09-2001/07，武汉理工大学，材料科学与工程学院，学士学位。

　　（1）土壤环境中金属微生物腐蚀规律研究；

　　（2）固、液、气三相共存条件金属腐蚀规律研究；

　　（3）土壤环境中混凝土中钢筋腐蚀规律研究；

　　（4）土壤腐蚀性评价及土壤环境中金属腐蚀性评价；

　　（5）土壤环境中金属杂散电流腐蚀及防护规律研究

　　中国腐蚀与防护学会土壤专业委员会委员

　　1、油田工业动火电焊杂散电流大小及分布规律研究，2013年获得国家安全生产科技成果二等奖，陈荣灿，孙成，陈忠全，许进，张新国，吴平，魏新春，尚思贤。

　　2、交流杂散电流对埋地管道腐蚀影响研究, 2013年获得新疆油田科技进步二等奖，孙建刚，孙成，朱辉，许进，汪开雄，闫茂成，齐文元，李洪福。

　　[1] Jin Xu, Cheng Sun, Maocheng Yan, Fuhui Wang. Electrochemical behavior of steel A36 under disbonded coating in the presence of sulfate-reducing bacteria. Materials Chemistry and Physics. 2013, 142 (2-3): 692- 700. (SCI)

　　[2] Jin Xu, Cheng Sun, Maocheng Yan, Fuhui Wang. Variations of microenvironme- nts with and without SRB for steel Q 235 under a simulated disbonded coating. Industrial & Enginneering Chemistry Research. 2013, 52 (36): 12838- 12845. (SCI)

　　[3] Xin Wang, Jin Xu*, Cheng Sun. Effects of sulfate-reducing bacterial on corrosion of 403 stainless steel in soils containing chloride Ions. International Journal of Electrochemical Science. 2013, 8 (1):.821-830. (SCI)

　　[4] Jin Xu, Cheng Sun, Maocheng Yan, Fuhui Wang. Effects of sulfate reducing bacteria on corrosion of carbon steel Q235 in soil-extract solution. International Journal of Electrochemical Science. 2012, 7 (11): 11281-11296. (SCI)

　　[5] Jin Xu, Cheng Sun, Maocheng Yan, Fuhui Wang. Effects of sulfate-reducing bacteria on corrosion of carbon steel Q235 in the crevice by EIS. International Journal of Electrochemical Science. 2012, 7 (11): 11297-11312. (SCI)

　　[6] Jin Xu, Kaixiong Wang, Cheng Sun, Fuhui Wang, Ximing Li, Jiaxing Yang, Changkun Yu. Effects of sulfate reducing bacteria on corrosion of the carbon steel Q235 under the disbonded coating by electrochemical impedance spectroscopy. Corrosion Science. 2011, 53 (4): 1554- 1562 (SCI)

　　[7] C Sun, J Xu*, FH Wang, CK Yu. Effects of sulfate reducing bacteria on corrosion of 1Cr18Ni9Ti. Materials Chemistry and Physics. 2011, 126 (1-2): 330-336. (SCI)

　　[8] Sun Cheng, Xu Jin*, Wang Fuhui. Interaction of sulfate-reducing bacteria and carbon steel Q235 in biofilm. Industrial & Enginneering Chemistry Research. 2011, 50 (22): 12797-12806. (SCI)

　　[9] C Sun, J Xu*, FH Wang, CK Yu. Effects of SRB on cathodic protection of Q235 steel in soils. Materials and Corrosion. 2010, 61 (9): 762-768. (SCI)

　　[10] Jin Xu, Cheng Sun, Maocheng Yan, Fuhui Wang, Studies of corrosion of carbon steel Q 235 in a crevice under a simulated disbonded coating, Corrosion, DOI: 10.5006/1224. (SCI)

　　[11] C Sun, X.M. Li, J Xu, M.C. Yan, C.K. Yu. Effect of urea on microbiologically induced corrosion of carbon steel in soil, Acta Physico-Chimica Sinica, 2012, 28 (11): 2659-2668. (SCI)

　　[12] Maocheng Yan,Cheng Sun, Jin Xu, Junhua Dong, Wei Ke, Role of Fe oxides in corrosion of pipeline steel in a red clay soil. Corrosion Science, 2014, 80 (3): 309-317. (SCI)

　　[13] Y.H. Wu, T.M. Liu, C. Sun, J. Xu, C. K. Yu. Effects of simulated acid rain on corrosion behaviors of Q235 steel in acidic soil. Corrosion Engineering Science and Technology. 2010, 45 (2): 136. (SCI)

　　[14] TangQing Wu, Jin Xu, Maocheng Yan Cheng Sun, Changkun Yu, Wei Ke, Synergistic Effect of Sulfate-reducing Bacteria and Elastic Stress on Corrosion of X80 Steel in Soil Solution, Corrosion Science, DOI: 10.1016/j.corsci.2014.01.017. (SCI)

　　[15] Xin Wang, Jin Xu*, Cheng Sun. Influence of sulfate reducing bacteria on corrosion of steel Q235 during natural evaporation in soils. Advance material research, 2013, (610-613): 243-248. (EI ＆ ISTP)

　　[16] Zhao Ping, Yang Jiaxing , Du Dunyong, Sun Cheng, Xu Jin. The Effects of sulfate reducing bacteria on crevice corrosion behavior of Q235 steel, Advanced Materials Research, 2012, (393-395): 1541-1544. (EI ＆ ISTP)

　　[17] Zhao Ping; Yang Jiaxing; Zhu Pengpeng; Sun Cheng; Xu Jin. A comparative study of the effects of sulfate reducing bacteria on corrosion of carbon steel Q235 under simulated disbonded coating with different width of aperture，Advanced Materials Research, 2012, (503-504): 247-250. (EI ＆ ISTP)

近期获得专利：

　　[1] 许进, 孙成, 于长坤, 吴堂清, 闫茂成, 龙康. 一种剥离涂层下缝隙内电位二位分布测量装置. 实用新型专利. 专利号: ZL201320223233.9.

　　[2] 许进, 孙成, 于长坤, 吴堂清, 闫茂成, 龙康. 多通道电位测量仪. 实用新型专利. 专利号: ZL201320223377.4.

　　[3] 孙成, 许进, 闫茂成, 吴堂清, 于长坤, 龙康. 一种剥离涂层下缝隙内金属腐蚀试验装置.实用新型专利. 专利号: ZL201220421216.1.

　　[4] 孙成, 许进, 吴堂清, 闫茂成, 于长坤, 龙康. 一种有色金属土壤加速腐蚀试验装置. 实用新型专利. 专利号: ZL201220425735.5.

　　[5] 孙成, 许进, 闫茂成, 吴堂清, 于长坤, 龙康. 电化学腐蚀测量原位观察实验装置. 实用新型专利. 专利号: ZL201220435124.9.

　　[6] 吴堂清, 许进, 闫茂成, 孙凯晗, 于长坤, 龙康, 孙成, 柯伟. 一种双环境池应力腐蚀测量装置. 实用新型专利. 专利号: ZL201310287344.0.

　　[7] 闫茂成, 孙成, 许进, 吴堂清, 龙康. 一种缝隙内金属应力腐蚀试验装置. 实用新型专利. 专利号: ZL201320507713.8

　　[8] 闫茂成, 孙成, 许进, 吴堂清, 龙康. 一种快速分析评价金属材料在土壤中腐蚀行为的实验装置. 实用新型专利. 专利号: ZL201320507534.4

　　[9] 吴堂清, 孙成, 闫茂成, 许进, 于长坤, 龙康. 一种恒温厌氧反应器. 实用新型专利. 专利号: ZL201320261181.4.

　　[10] 孙成, 闫茂成, 吴堂清, 许进, 于长坤, 龙康. 自循环固液相冲刷腐蚀实验装置. 实用新型专利. 专利号: ZL201220442345.9.

　　[11] 孙成, 吴堂清, 闫茂成, 许进, 于长坤, 龙康. 便携式变载荷数字应力腐蚀测量装置. 实用新型专利. 专利号: ZL201220434841.X.