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), but it does not influence DP growth rate. Grain refinement also prematurely terminates continuous precipitation because the formation of a large number of DP reduces the amount of Al dissolved...-third. The enhanced precipitation behavior also leads to an additional hardness improvement in the aged alloy, along with an increase in hardness owing to grain boundary strengthening by grain refinement......
Grain refinement and mechanism of CAl0.5W0.5 compound in Mg-Al alloysLIU Baozhonga,b,FAN Yanpinga,PENG Qiumingb,MI Guofaa,and WANG Liminb a School of Materials Science and Engineering,Henan...="ChDivSummary">The effect of CAl0.5W0.5(CAW) compound on the grain refinement of Mg-Al based alloys was investigated.The results show that CAW compound is an effective and active grain refiner.The grain size......
Grain refinement of low carbon steel produced by CSP processXiangdong Huo, Delu Liu, Yuanli Wang, Nanjing Chen, Yonglin Kang, and Jie FuMaterials Science and Engineering School, University of Science... to clarify the grain refinement mechanism of low carbon steel strips produced by the EAF-CSP process. Samples, obtained from the same rolling stock during continuous rolling, were examined through SEM, TEM......
strengthens the grain refinement effect and spheroidization of dendrite arms. Key words: AZ31 magnesium alloy; grain refinement; pulsed magnetic field; solidified microstructure 1 Introduction Magnesium... equiaxed grains were produced for pure Al. WANG et al[9-10] researched the grain refinement effect of AZ91 alloy and Mg-Gd-Y-Zr alloy under external PMF. The experimental results showed......
the spray formed AZ91 Mg alloy is sufficiently refined by Si added. Key words: AZ91 Mg alloy; spray forming technology; Mg2Si; grain refinement ......
Grain Refinement and Modification of Al-Cu Alloys with Yttrium李敏School of Materials Science & Engineering,Harbin Institute of Technology摘 要:The refinement and modification of Al-Cu alloys can result in the change of solidification process,e.g.the nucleation temperature,eutectic arrest,solidification range and cooling rate.Specially,the refinement......
Grain refinement of AZ31 magnesium alloy by Al-Ti-C-Y master alloy许春香,卢斌峰,吕正玲,梁伟摘 要:Al-Ti-C-Y master alloy was prepared by combining SHS technique and melting-casting method. The microstructure of master alloy and its grain-refining effect on AZ31 alloy were investigated by means of OM, XRD, SEM and EDS. Experimental results indicated that the prepared......
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, and holding at 800 ℃ for 30 min, which has better grain refining performance on Al-7Si alloy. Key words: Al-3Ti-1B master alloy; processing parameters; grain refinement; Al-7Si alloy ..., weldability, corrosion resistance and integrated mechanical properties[1]. The quality of hypoeutectic Al-Si alloys can be improved by grain refinement that reduces the size of primary α(Al) grains......
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