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您的检索式：作者名="GAO Xinkui"
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| 1 | A novel high-strength Al-La-Mg-Mn alloy for selective laser melting显示文摘Developing high-strength Al-(La,Ce)alloys for additive manufacturing(AM)would entail considerable economic benefits.In this work,a novel near-eutectic Al-La alloy containing 5.50 wt.%Mg and 0.60 wt.%Mn was designed and fabricated via selective laser melting(SLM).Submicron Al_(11)La_(3)intermetallics with 3D continuous cellular-dendritic and granular morphologies were observed at the interior and boundary of the melt pool,respectively.Interestingly,these intermetallics are hierarchical and contained numerous Al_(6)Mn and Mg_(2)Si secondary nanoprecipitates.The as-fabricated alloy exhibited a tensile yield strength(YS)of 334 MPa and ultimate tensile strength(UTS)of 588 MPa at room temperature,which is the high-est UTS reported for Al-(La,Ce)alloys with an appreciable failure strain of∼6.4%.The 3D continuous cellular dendritic intermetallic and high Mg content afford significant strengthening and work harden-ing ability.In addition,the hierarchical feature of the intermetallics generated additional microcracks to coordinate the deformation. | Xinkui Zhang Liejun Li Zhi Wang Hanlin Peng Jixiang Gao Zhengwu Peng | 2023 | Journal of Materials Science & Technology2023，，6： | 1 |
| 2 | Corrosion Resistance Mechanism of Magnesia Zirconia Brick to RH Furnace Slag显示文摘Magnesia zirconia brick containing 11 wt% zirconia was prepared with magnesia and monoclinic zirconia as starting materials in order to replace the chrome-containing materials for RH furnace.The corrosion resistance of magnesia zirconia brick and fused rebonded magnesia chrome brick (short for magnesia chrome brick) to high and low basicity slag of RH furnace was comparatively researched by rotary slag method and their slag resistance mechanisms were analyzed.The results show that:(1) because the reaction layer containing CaZrO3 forms in magnesia zirconia brick,it has better corrosion resistance to high basicity slag than magnesia chrome brick,however,it has worse corrosion resistance to low basicity slag than magnesia chrome brick;(2) ZrO2 in the magnesia zirconia brick can absorb CaO in the slag,which decreases the basicity of slag and increases the viscosity of slag,so the degree of slag penetration in magnesia zirconia brick decreases;(3) there is little zirconia in the slag layer of residual magnesia zirconia brick;from working face to original brick layer,the residual magnesia zirconia brick shows three layers:obviously deteriorative layer,slightly deteriorative layer,and original brick layer,but the residual magnesia chrome brick only shows two layers:obviously deteriorative layer and original brick layer;the SiO2 content of residual magnesia zirconia brick is the highest in the slightly deteriorative layer,however,the SiO2 content of residual magnesia chrome brick gradually decreases from working face to original brick layer. | YIN Guoxiang PAN Bo GAO Xinkui SUN Jialin | 2011 | China's Refractories2011，20，3： | 0 |
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