个人简介

工学博士，副研究员，硕士生导师， 2013年获选中国科学院青年创新促进会会员。

2003年本科毕业于东北大学材料科学与工程系

2006年在东北大学获得材料学硕士学位

2010年在金属研究所获得材料学博士学位

2011年~至今，在金属研究所先进钢铁材料研究部工作

研究方向

从事金属材料凝固组织演化、偏析机制及偏析控制技术的研究。研究关注枝晶凝固为液态-半固态-固态相变过程，枝晶本体由半固态构成，半固态向固态转变产生复杂的凝固组织，并伴随着显著的偏析演化。终凝组织和微观偏析的形成皆与半固态转变密切相关。提出温度波动驱动半固态内溶质传输，半固态内偏析与固相率演化涌现形成凝固组织及枝晶偏析的新机制，通过数值模拟研究组织及偏析的复杂演化过程。利用半固态-固态转变实现凝固组织及偏析调控。在近固相线等温，利用半固态的高效溶质传输抑制偏析及共晶组织形成，获得准平衡态凝固组织。通过控制半固态-固态转变过程改变凝固组织特征。

获奖以及荣誉

2010年获中国科学院院长优秀奖

研究成果

在crystal growth & design、materials & design、APL、JMST、nature communications、MMT A、MMT B、internatiaonal journal of heat and mass transfer、journal of materials research、journal of alloys and compounds、ISIJ international、metals and materials international等期刊上发表论文21篇。

[1] X.P. Ma, D.Z. Li, Z. Zhao, H.W. Liu, Y.F. Cao, P.X. Fu, P. Wang, Principle and in-situ observation on discrete solidification, Journal of Materials Science and Technology. 192(2024) 28-41.

[2] X.P. Ma, D.Z. Li,Multi-scale macrosegregation patterns due to the ripple superimposition: characterization, mechanism and control, Materials & Design. 172(2019) 107765.

[3] X.P. Ma, D.Z. Li,The 3-Dimensional morphology of dendrite during equiaxed solidification of an Al-5wt.%Cu alloy, Journal of Materials Science and Technology. 35(2019) 239-247.

[4] X.P. Ma, H.W. Liu, P.X. Fu, D.Z. Li,Nano-scale dendrites within the conventional dendritic arm, Materials & Design. 212(2021) 110263.

[5] X.P. Ma, D.Z. Li,Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix, Journal of Materials Science and Technology. 107(2022) 26-33.

[6] Xiaoping Ma, Dianzhong Li. Multiscale Discrete crystal growth in the solidification of 20SiMnMo5 steel. Crystal Growth and Design, 16, 3163-3169, 2016.

[7] Xiaoping Ma, Dianzhong Li. Non-equilibrium solidification and microsegregation mechanism based on interface evolution and discrete crystal growth. Metallurgical and Materials Transactions A, 46, 549-555, 2015.

[8] Xiaoping Ma, Dianzhong Li. Heterogeneous strip originated from the separate enriched melt: Innate character and physical mechanism. International Journal of Heat and Mass Transfer. 598, 558-567, 2016.

[9] Ma, X., Li, D. Characterization, Mechanism and Control Measures of V Segregation in Continuous Casting Billet of C-Mn Steel. Metall Mater Trans B 50, 1161–1170 (2019).

[10]  Xiaoping Ma, Xiuhong Kang, Dianzhong Li. Different crystal growth and microsegregation mechanisms based on interface evolution in 0Cr18Ni9 stainless steel ingot. Journal of Alloys and Compounds, 681, 492-498, 2016.

[11] X.P. Ma, D.Z. Li,Thefaceteddiscretegrowth andphasedifferentiationduring thedirectionalsolidification of 20SiMnMo5steel, Metals and Materials International, 24(2018) 886-893.

[12] Xiaoping Ma, Dianzhong Li. Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy. International Journal of Materials Research.108,364-377, 2017.

[13] X.P. Ma, D.Z. Li, Coalescence-dominated microstructure evolution during solidification of 20SiMn steel, Journal of Iron and Steel Research International. 27(2020)506-516.

[14] Xiaoping Ma, Dianzhong Li, Characterization and analysis about the heterogeneity of inclusions in a 500kg steel ball, International Journal of Cast Metals Research, 32, (2019) 135-144.

[15]  Xiaoping Ma, Dianzhong Li. Interrupted interface growth and periodic boundary layer trapping in dendrite growth of steel. Applied Physics Letters, 2013(102):241903.

[16]  Xiaoping Ma, Dianzhong Li. Macrosegregation and formation mechanism in steel ingot with designed local thermal control. ISIJ International, 2014(54): 356-358.

[17] Dianzhong Li, Xing-Qiu Chen, Paixian Fu, Xiaoping Ma, Hongwei Liu, Yun Chen, Yanfei Cao, Yikun Luan & Yiyi Li. Inclusion flotation-driven channel segregation in solidifying steels. Nature Communications, 2014(55): 5572.

[18]  Xiaoping Ma, Yingju Li, Yuansheng Yang. Grain Refinement Effect of Pulsed Magnetic Field on As-cast Superalloy K417. Journal of Materials Research, 2009(24):2670-2676.

[19] Xiaoping Ma, Yingju Li, Yuansheng Yang. Grain refinement effect of pulsed magnetic field on solidified microstructure of superalloy IN718, Journal of Materials Research, 2009(24):3174-3181.

[20] Xiaoping Ma, Yingju Li, Yuansheng Yang. The origin of nuclei and the refinement mechanism for solidified superalloy IN718 under pulsed magnetic field, Journal of Materials Research, 2009(24):3689-3692.

[21] Xiaoping Ma, Yuansheng Yang, Bin Wang. Effect of pulsed magnetic field on superalloy melt. Internatiaonal Journal of Heat and Mass Transfer, 2009(52): 5285-5292.