ABSTRACTS——From Journal of Iron and Steel Research (in Chinese)2002,14(1)— 2002,14(3 )

ＳｉｍｕｌａｔｉｖｅＥｘｐｅｒｉｍｅｎｔｏｆＯｘｙｇｅｎＵｔｉｌｉｚａｔｉｏｎｆｏｒＬａｒｇｅＥＡＦＳｔｅｅｌｍａｋｉｎｇａｎｄＩｔｓＩｎｄｕｓｔｒｉａｌＡｐｐｌｉｃａ ｔｉｏｎＹＡＮＧＷｅｎ ｙｕａｎ1 ,ＺＨＯＵＪｕｎ1 ,ＷＡＮＧＭｉｎｇ ｌｉｎ1 ,ＤＩＮＧＹｏｎｇ ｌｉａｎｇ1 ,ＹＵＰｉｎｇ2 ,ＸＵＤｅ ｈｏｎｇ2 (1 .ＣｅｎｔｒａｌＩｒｏｎ＆ＳｔｅｅｌＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅ,Ｂｅｉｊｉｎｇ 1 0 0 0 81 ,Ｃｈｉｎａ;2 .ＴｉａｎｊｉｎＰｉｐｅＣｏ,Ｔｉａｎ ｊｉｎ 30 0 30 1 ,Ｃｈｉｎａ)Ａｂｓｔｒ…     

ABSTRACTS——From the Journal of Ironand Steel Research (inChinese) 2000 ,12(1)—2000,12(3)

ＲｅｓｅａｒｃｈｏｎＬｅｖｉｔａｔｉｏｎＦｏｒｃｅｉｎＬｅｖｉｔａｔｉｏｎＭｅｌｔｉｎｇｂｙＷａｔｅｒＣｏｏｌｅｄＣｒｕｃｉｂｌｅＣＨＥＮＪｉａｎ ｑｉａｎｇ ,ＲＥＮＺｈｏｎｇ ｍｉｎｇ ,ＤＥＮＧＫａｎｇ ,ＪＩＡＮＧＧｕｏ ｃｈａｎｇ(ＳｈａｎｇｈａｉＵｎｉｖｅｒｓｉｔｙ ,Ｓｈａｎｇｈａｉ2 0 0 0 72 ,Ｃｈｉｎａ)Ａｂｓｔｒａｃｔ:Ｕｓｉｎｇａｌｅｖｉｔａｔｉｏｎｆｏｒｃｅｍｅａｓｕｒｉｎｇｄｅｖｉｃｅｓｐｅｃｉａｌｌｙｄｅ ｓｉｇｎｅｄ ,ｔｈｅｌｅｖｉｔａｔｉｏｎｂｅｈａｖｉｏｒｓｏｆｓｅｖｅｒａｌｋ…     

RE-Carbide in High Carbon Steel

ＲＥ－ＣａｒｂｉｄｅｉｎＨｉｇｈＣａｒｂｏｎＳｔｅｅｌＧｕｏＨａｉｌａｎ（郭海兰），ＤｉｎｇＳｈｉｊｉｅ（丁师杰）（ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＣｈｅｍｉｃａｌＴｅｃｈｎｏｌｏｇｙ，Ｂｅｉｊｉｎｇ１０００２９，Ｃｈｉｎａ）ＸｉａｏＱｉａｎｇ...     

Determination of Crystal Structure of Britholite-Y

ＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＢｒｉｔｈｏｌｉｔｅ－ＹＺｈａｎｇＪｉａｎ－Ｈｏｎｇ；（张建洪）；ＦａｎｇＺｅ；（方泽）；ＬｉａｏＬｉ－Ｂｉｎｇ；（廖立兵）（ＣｈｉｎａＵｎｉｖｅｒｓｉｔｙｏｆＧｅｏｓｃｉｅｎｃｅｓ，...     

国内阀门钢的生产研究和发展

国内阀门钢的生产研究和发展阳东海（北京科技大学，北京１０００８３）Ｐｒｏｄｕｃｔｉｏｎ，ＲｅｓｅａｒｃｈａｎｄＤｅｖｅｌｏｐｍｅｎｔｏｆＶａｌｖｅＳｔｅｅｌｉｎＣｈｉｎａ￥ＹａｎｇＤｏｕｇｈａｌ（ＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃｅａｎｄＴｅｃｈｎ...     

Study on Laser Drilling in Rare Earth Magnets

ＳｔｕｄｙｏｎＬａｓｅｒＤｒｉｌｉｎｇｉｎＲａｒｅＥａｒｔｈＭａｇｎｅｔｓＬｉｕＬｉｍｉｎ（刘丽敏），ＬｉＣｈａｎｇｊｉａｎｇ（李长江）（ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＣｈｅｍｉｃａｌＴｅｃｈｎｏｌｏｇｙ，Ｂｅｉｊｉｎｇ１０００２９，Ｃｈｉｎ...     

认真规划、加快平炉改造步伐

认真规划、加快平炉改造步伐潘荫华（冶金部科技司）ＭＡＫＥＡＣＯＭＰＲＥＨＥＮＳＩＶＥＰＲＯＧＲＡＭＴＯＱＵＩＣＫＥＮＴＨＥＴＲＡＮＳＦＯＲＭＡＴＩＯＮＯＦＯＰＥＮＨＥＡＲＴＨＦＵＲＮＡＣＥＳＰａｎＹｉｎｈｕａ（ＳｃｉｅｎｃｅａｎｄＴｅｃｈｎｏｌｏｇｙ...     

Effect of Rare Earths and Nitrogen on Graphite Structure of Gray Cast Iron

ＥｆｅｃｔｏｆＲａｒｅＥａｒｔｈｓａｎｄＮｉｔｒｏｇｅｎｏｎＧｒａｐｈｉｔｅＳｔｒｕｃｔｕｒｅｏｆＧｒａｙＣａｓｔＩｒｏｎＺｈａｉＱｉｊｉｅ（翟启杰），ＺｅｎｇＱｉ（曾奇）（ＦｏｕｎｄｒｙＩｎｓｔｉｔｕｔｅ，ＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃｅａ...     

棒料液压折断机

棒料液压折断机陈国清，骆际焕，邱文婷（华中理工大学机二系）ＨｙｄｒａｕｌｉｃＦｒａｃｔｕｒｅＲｏｄＭａｃｈｉｎｅ￥ＣｈｅｎＧｕｏｑｉｎｇ；ＬｕｏＪｉｈｕａｎａｎｄＱｉｕＷｅｎｔｉｎｇ（ＨｕａｚｈｏｎｇＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃｅ＆Ｔｅｃｈｎ...     

Bibliography of Science and Technology of Rare Earths Published in China（1995）

ＢｉｂｌｉｏｇｒａｐｈｙｏｆＳｃｉｅｎｃｅａｎｄＴｅｃｈｎｏｌｏｇｙｏｆＲａｒｅＥａｒｔｈｓＰｕｂｌｉｓｈｅｄｉｎＣｈｉｎａ（１９９５）ＧｅｏｌｏｇｙａｎｄＯｒｅＤｒｅｓｓｉｎｇ００１Ａｐｒｅｌｉｍｉｎａｒｙｒｅｓｅａｒｃｈｏｎｃｈａｒａｃｔｅｒｉｓ...     

(La_xNd_y)_(0.90)Mg_(0.10)Ni_(3.09)Mn_(0.12)Co_(0.60)Al_(0.13)贮氢合金自放电性能研究

为了提高La-Mg-Ni基贮氢合金的荷电保持率,本文研究了La/Nd比的变化对La-Mg-Ni基贮氢合金自放电性能的影响。随着Nd替代La量的增加,(LaxNdy)0.9Mg0.10Ni3.09Mn0.12Co0.60Al0.13(x/y=5,4,3,2,1)合金的荷电保持率先增大后减小,当x/y=4时,其荷电保持率达到最大值80.8%(318 K)。合金电极贮存后,FESEM-EDS和XRD分析表明,合金颗粒表面形成了Mg(OH)2和Nd(OH)3。P-C-T曲线和Tafel极化测试表明,随着Nd含量的增加,金属氢化物的稳定性呈现先增加后降低和腐蚀电流先减小后增大的规律。     

(Fe_(0.86)Zr_(0.033)Nb_(0.033)B_(0.068)Cu_(0.01))_x(Al_2O_3)_(1-x)颗粒膜的霍耳效应

用磁控溅射方法制备了系列 (Fe0 .86 Zr0 .0 33Nb0 .0 33B0 .0 6 8Cu0 .0 1 ) x(Al2 O3) 1 -x颗粒膜样品 ,体积百分比x从 0 .3 3～ 0 .63 ,样品厚度约为10 0nm。室温下在Fe0 .86 Zr0 .0 33Nb0 .0 33B0 .0 6 8Cu0 .0 1 体积百分比x =0 .43时得到 17.5 μΩ·cm的最大饱和霍耳电阻率 ,比纯铁磁金属提高了 3～ 4个量级。对其磁性和微结构进行了研究 ,样品霍耳电阻率随外场的变化曲线 ρxy～H与磁场平行于膜面时的磁化曲线M～H有相似性 ,说明霍尔电阻率 ρxy与磁化强度M相关。样品电阻率 ρxx随金属体积百分比x的减小而增加 ,在x =0 .43附近发生突变 ,从金属导电变为绝缘体。根据微结构和输运性质对可能的机制进行了探讨     

Indentation creep behaviors of Mg61Cu28Gd11 and （Mg61Cu28Gd11）99.5Sb0.5 bulk metallic glasses at room temperature

The room temperature creep behaviors of Mg61Cu28Gd11 and(Mg61Cu28Gd11)99.5Sb0.5 bulk metallic glasses(BMGs) were revealed by means of nanoindentation technique.The creep mechanism was explored by characterization of creep rate sensitivity,creep compliance and retardation spectra.The results showed that the experimental creep curves could be well described by a generalized Kelvin model.The low creep rate sensitivity of both Mg-based BMGs indicated that their room temperature creep was dominated by localized shear flow.In addition,the(Mg61Cu28Gd11)99.5Sb0.5 glassy alloy exhibited lower creep rate sensitivity,creep compliance and milder retardation peak,indicating its higher creep-resistance and less relaxed state.Furthermore,the creep retardation spectrum consisted of two relatively separated peaks with the well defined characteristic relaxation times.     

La_(1.1)Fe_(11.4)Si_(1.55)Ge_(0.05)合金的磁热效应

使用电弧熔炼法制备了La1.1Fe11.4Si1.55Ge0.05合金。研究了用少量的Ge替代Si后,La1.1Fe11.4Si1.55Ge0.05合金的磁性和磁热效应。粉末X射线衍射结果表明:在1273K真空退火处理10d后,合金La1.1Fe11.4Si1.55Ge0.05主相为NaZn13型立方结构,存在微量的α-Fe相。热磁曲线M-T与Arrott曲线表明:在居里温度Tc=205K处发生由铁磁性(TTc)转变为顺磁性(TTc)的二级磁相变。在磁场变化0～1.5T下,根据等温磁化曲线通过Maxwell关系式计算得出最大磁熵变-ΔSmmax=9J.kg-.1K-1。Ge替代Si后该合金在其居里温度Tc处-ΔSm-T曲线半高宽增大,使合金的相对制冷能力RCP(S)有所提高。     

Structure and Magnetic Properties of Y(Fe_(1-x) Co_x)_ (11.3) Nb_(0.7)

ＩｎｒｅｃｅｎｔｙｅａｒｓＴｈＭｎ12 ｔｙｐｅｉｒｏｎ ｒｉｃｈｃｏｍｐｏｕｎｄｓｈａｖｅｂｅｅｎｉｎｔｅｎｓｉｖｅｌｙｉｎｖｅｓｔｉｇａｔｅｄｄｕｅｔｏｔｈｅｉｒｅｘｃｅｌｌｅｎｔｐｅｒｍａｎｅｎｔ ｍａｇｎｅｔｉｃｐｒｏｐｅｒｔｉｅｓ .ＡｌｔｈｏｕｇｈｐｕｒｅｂｉｎａｒｙＲＥ Ｆｅｃｏｍ ｐｏｕｎｄｓｄｏｎｏｔｅｘｉｓｔ,ｔｈｅＴｈＭｎ12 ｓｔｒｕｃｔｕｒｅｃａｎｂｅｓｔａｂｉｌｉｚｅｄｉｎｐｓｅｕｄｏｂｉｎａｒｉｅｓｏｆｔｈｅｔｙｐｅＲＥＦｅ12 -ｘＭｘ,ｗｉｔｈＭ =Ａｌ,Ｔｉ,Ｃｒ ,Ｓｉ ,Ｍｏ ,Ｖ …     

Kinetics of Hydrogen Absorption in MmNi_（3．55）Co_（0．75）Mn_（0．4）Al_（0．3） Alloy

ＫｉｎｅｔｉｃｓｏｆＨｙｄｒｏｇｅｎＡｂｓｏｒｐｔｉｏｎｉｎＭｍＮｉ_（３．５５）Ｃｏ_（０．７５）Ｍｎ_（０．４）Ａｌ_（０．３）ＡｌｌｏｙＬｉｎＱｉｎ（林勤），ＹｕＺｈｅｎｔａｏ（于振涛），ＹｅＷｅｎ（叶文）（ＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃｅａ...     

Osteodysplasty (Melnick-Needles syndrome) (author's transl)

Authors report a new case of osteodisplasty (Melnick-Needles syndrome) and describe radiological findings that are typical of this entity: bony sclerosis of base structures, abnormal dental alignment, sclerosis and irregularity of clavicles and ribs, described as "band-like" deformity, cortical irregularity of tubular bones with metaphyseal flaring and diaphyseal bowing. Flat bones are broadened, particularly iliac crest and vertebral bones. Facial features described by the majority of authors in this entity are present in our patient in an incomplete form: craniofacial disproportion, micrognatia, depressed temples, exophthalmus (not in our patient) and broadened forehead. The paper is intended to gather clinical data of already reported cases in order to facilitate clinical research in the future from the immunological, genetical and biochemical points of view. Our patient has the same clinical history as the patient studied in the original paper. Dr. Melnick was kind enough to send us clinical data and autopsy findings.