共搜索到3187条信息,每页显示10条信息,共319页。用时:0小时0分0秒322毫秒
Influences of complex modification of P and RE on microstructure and mechanical properties of hypereutectic Al-20Si alloy CHEN Chong(陈 冲), LIU Zhong-xia(刘忠侠), REN Bo(任 波), WANG Ming-xing(王明星... complex modification of hypereutectic Al-Si alloys was conducted. The influences of P, RE content on the microstructure and mechanical properties of alloys were investigated. The complex modifications of P......
Thermal stability and oil absorption of aluminum hydroxide treated by dry modification with different modifiers ZHOU Xiang-yang(周向阳)1, LI Chang-lin(李昌林)1, HUO Deng-wei(霍登伟)1, 2, LI Jie(李 劼)1, WU...; Abstract: The thermal stability, particle size and morphology and oil absorption of aluminum hydroxide(ATH) treated by dry modification with three different modifiers......
J. Cent. South Univ. (2019) 26: 2651-2660 DOI: https://doi.org/10.1007/s11771-019-4202-8 Effect of complex modification of Al-5Ti and Al-3P on hypereutectic Al-18Si alloys WANG Jian-hua(王建华)1, 2, 3... influencing factor on the tensile strength and elongation of the Al-18Si alloy is the addition of Al-3P, followed by the modification temperature and the addition of Al-5Ti. At a modification......
Modification Effects of Lanthanum-Rich Mischmetal on A357 Alloy 李华基1,刘昌明1,薛寒松1,李革胜1 (1.College of Mechanical Engineering, Chongqing University,) Abstract:A357 alloy was modified with lanthanum -rich mischmetal, and modification effects of the mischmetal on its as-cast and heat-treated structures, mechanical properties and hydrogen content were investigated and compared with that of strontium......
Modification effect of lanthanum on primary phase Mg2Si in Mg-Si alloys GUO Erjun1,WANG Liping1,MA Baoxia1 (1.Department of Materials Science and Engineering, Harbin University of Science... modify the primary phase Mg2Si. Based on the present experiment, the optimal modification effect was obtained with an addition of about 0.5 wt.% La. The size of the primary phase Mg2Si was considerably......
Polymer grafting modification of the surface of nano silicon dioxideWei Wu, Jianfeng Chen, Lei Shao, Shouci LuResearch Center of the Ministry of Education for High Gravity of Engineering &...="ChDivSummary" name="ChDivSummary"><正>Based on the composite modification technology of the surface of nano silicon dioxide by non-soap emulsion polymerization, it is verified that there are polymer......
Effect of Rare Earth Composite Modification on Microstructure and Properties of a New Cast Hot-Work Die Steel 王树奇1,方建儒1,姜启川1,关庆丰1 (1.Department of Materials Science and Engineering, Jilin University, Changchun 130025, China) Abstract:The effects of RE modification on structure and the properties of a new cast hot-work die (CHD) steel were investigated. The grains of the CHD steel are refined......
Modification of Powder Compaction Equation of Kawakita葛荣德摘 要:<正> Based on an analysis of the validity of the powder compaction equation of Kawakita,a modifiedcompaction equation is proposed.It is shown by the statistical analysis on the experimental compaction data ofvarious powders that in most cases the proposed equation provides a better......
Laser Modification of Plasma Sprayed Alumina Coating陶曾毅,王爱华,朱蓓蒂,邓世均,程旭东,傅江民摘 要:<正> An alumina coating was developed on mildcarbon steel by plasma spraying and then modifiedby laser remelting.Some characteristics of plasmasprayed ceramic coating before and after laserremelting,such as microstructure,wear resistance,heat shock resistance,hot......
Effect of Surface Modification on Behaviors of Cerium Oxide Nanopowders李梅,史振学,柳召刚,胡艳宏,王觅堂,励杭泉摘 要:Study was made on the effect of surface modification... results showed that C12H25SO4Na surface modification might increase the flowability and dispersity,and decrease the specific surface area and agglomeration of CeO2 powders.The mechanism......