共搜索到13084条信息，每页显示10条信息，共1309页。用时：0小时0分0秒406毫秒
Structure and permanent magnetic properties of SmFe_x(x=3–8) melt spun ribbons during heat treatment罗阳,于敦波,李红卫,庄卫东,毛永军,陈晓霞,李扩社,刘宇超National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,Grirem Advanced Materials Co.,Ltd.摘 要:Compounds with the composition SmFex(x=3–8) were prepared by melt spun......
Structure and permanent magnetic properties of SmFe_x(x=3–8) melt spun ribbons during heat treatment罗阳,于敦波,李红卫,庄卫东,毛永军,陈晓霞,李扩社,刘宇超National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,Grirem Advanced Materials Co.,Ltd.摘 要:Compounds with the composition SmFex(x=3–8) were prepared by melt spun......
: TG244 文献标识码: A Effect of melt treatment on dendrite coherency of A357 alloys LI Jian-feng, LI Jin-shan, KOU Hong-chao, CHEN Zhong-wei, HU Rui, WANG Yi-chuan, FU Heng-zhi, ZHOU Lian (State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xian 710072, China) Abstract: The dendrite coherency point of A357 alloy was determined after melt-treatment by double......
%. Key words: magnesium alloy; Mg-Gd alloy; rare earth; strain-induced melt activation; semisolid; isothermal treatment 1 Introduction The semisolid forming (SSF) has become a widely accepted metal...]. Many methods such as magnetohydrodynamic stirring (MHD), mechanical stirring, spray casting, semi-solid isothermal heat treatment and strain-induced melt activation (SIMA) can be used to produce......
Influence of annealing treatment on properties and microstructures of alumina dispersion strengthened copper alloy SONG Ke-xing(宋克兴)1, 2, XING Jian-dong(邢建东)1, TIAN Bao-hong(田保红)2,LIU Ping(刘 平... with an interparticle spacing of 30-100nm. The produced 0.12%ADSC can maintain more than 87% hardness retention after 900℃, 1h annealing treatment; the recrystallization can be largely retarded......
显增强熔体温度处理对Al-Si合金中初生硅的细化效果. 关键词:高硅铝合金；熔体温度处理；熔体混合；熔体过热；变质；细化 中图分类号: TG146.2 文献标志码:A Effects of melt thermal treatment and modification on solidification microstructure... 350108, China) Abstract: The microstructures of Al-20%Si (mass fraction) alloy prepared by melt thermal treatment (including the melt mixing and melt superheating) were studied combining......
DZ125合金熔体超温处理过程中的弛豫现象王常帅1,张军1,邹敏明1,刘林1,傅恒志1(1.陕西省西安市西北工业大学凝固技术国家重点实验室)摘 要:采用熔体超温处理方法考察了DZ125定向凝固镍基高温合金熔体超温处理中的弛豫现象,结果表明:DZ125合金熔体超温处理中存在的弛豫现象对凝固组织有明显影响.当恒温静置时间小于30 min时,枝晶间距,偏析比,γ′相和γ+γ′共晶相的形貌及大小随恒温静置时间的增加均无明显变化.然而,进一步延长熔体恒温静置时间至60 min,枝晶间距增大,偏析加重,γ+γ′共晶相明显增......
Wetting behavior of Zr55Cu30Al10Ni5 melt on alumina XU Qian-gang(徐前刚)1, 2, ZHANG Hai-feng(张海峰)2, HU Zhuang-qi(胡壮麒)2 (1. Department of Materials Science and Engineering,Shenyang Institute... composites had been synthesized by melt infiltration casting. A good reinforcement should have good wettability and controllable reactivity with bulk metallic glass formers, and have little effect......
treatment CHU Chen-liang(褚晨亮)1, WU Xiao-quan(吴孝泉)1, QIU Shui-cai(邱水才)2, TANG Bin-bing(汤斌兵)3, YIN Zheng(殷正)1, YAN Hong(闫洪)1, LUO Chao(罗超)3, HU Zhi(胡志)1 1. Institute of Advanced Forming, Nanchang... during semi-solid isothermal heat treatment were investigated deeply in the present work. Results showed that the lamellar (Mg,Al)3Gd phases transformed into the particle-like Al2Gd phases in AZ31......
: The influence of melt superheating treatment on the microstructures of Mg-3.5Si-1Al alloys unmodified and modified with 0.2% Sr-Sb (mass fraction) was investigated. The results show that when the melt... phenomenon in materials[11-12]. CHEN et al[11] proposed that the superheating treatment of Al-7Si-0.55Mg melt can modify the eutectic Si phase through reducing the heredity of Si-Si clusters......
