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Abstract:he activation characteristics of the hydride negative electrode made of M1(NiCoMnTi)5 alloy powder microencapsulated by electroless Ni-P plating has been investigated. The results show that the microencapsulation of the hydrogen storage alloy powder by Ni-P plating increases the discharge capacity of the fabricated electrode, and that the charge- discharge cycling numbers increases in terms o f reaching to the maximum dischargecapacity of the electrode. Furthermore, it is found that a smaller cycling current makes the activation of the hydride negative electrode moreeasy.

Abstract:有模擬和計(jì)算的方法，確認(rèn)了構(gòu)成金屬－類(lèi)金屬非晶態(tài)合金的菱面體單元結(jié)構(gòu)（ＲＵＳ），并根據(jù)三條原則（類(lèi)金屬原子首先位于大八面體中心；除大八面體中心和其棱中心處的類(lèi)金屬原子之間可以存在一個(gè)類(lèi)金屬－類(lèi)金屬鍵外，其它位置處的原子之間不允許存在類(lèi)金屬－類(lèi)金屬鍵；同一成分，具有多種類(lèi)金屬原于排列方式時(shí)，取金屬－類(lèi)金屬鍵最多的情況），找出了各種ＲＵＳ中類(lèi)金屬原子的可能分布位置、所對(duì)應(yīng)的金屬－類(lèi)金屬鍵數(shù)和類(lèi)金屬成分。建立了各種分布情況下，每個(gè)類(lèi)金屬原子平均所占金屬－類(lèi)金屬鍵數(shù)與類(lèi)金屬含量的關(guān)系圖。結(jié)果表明，菱面體單元結(jié)構(gòu)只

Abstract:研究了９種不同加工熱處理制度的Ｚｒ－１Ｎｂ合金在５００℃和６００℃、１０．３ＭＰａ蒸汽中的抗腐蝕性能，并用最小二乘法線性回歸得出了５００℃蒸汽腐蝕特征值Ｋ和ｎ。結(jié)果表明；加工熱處理制度對(duì)Ｚｒ－１Ｎｂ合金的高溫蒸汽腐蝕性能有顯著的影響，并最終歸結(jié)為α－Ｚｒ中過(guò)飽和Ｎｂ含量的影響；５００℃腐蝕時(shí)可看到明顯的多次轉(zhuǎn)折現(xiàn)象，認(rèn)為是腐蝕過(guò)程中新鮮氧化膜重復(fù)形成與破裂的結(jié)果；所有狀態(tài)的Ｚｒ－１Ｎｂ合金在５００℃和６００℃蒸汽中實(shí)驗(yàn)時(shí)都沒(méi)有發(fā)現(xiàn)不均勻癤狀腐蝕發(fā)生，說(shuō)明經(jīng)適當(dāng)加工熱處理的Ｚｒ－１Ｎｂ合金有良好的抗蒸汽腐蝕

Abstract:The appropriate exposure conditions were determined by testing, under there spectrometric analyses conditions, the fractional distillation and the influences of third element can be red nced maximumly . It was d iscovered in experiments that the alloy elements -Aluminium, Molybdenum-had influenced the determinations of some elements intitanium alloys. In order to reduce the influences of that, the six series standard sam pies were prepared to be used in the spectrometric determination of ten impure elements in titaniumand its alloys under the same conditions as above.

Abstract:his paper presents the computer group control system which is developed with the object of the 12 sets of 600kW furnace used for 3150t extruding press of Baoji Nonferrous Metals Works. The system includes measuring the surface temperature of ingots, modifying temperature in the whole process by means of radiation and the group optimization control in the whole heating pocess by computer.

Abstract:his paper presents some physicalproperties of metal materials in high strain - rates and high pressure,such as the constitutive equation and control equations at the high impact loading,the stress wave behaviour during loading and unloading, the dynamic yield and dynamic failure.The structure of the gas gun and some methods for the plate stroke wave tests are also presented in this paper.And the dynamic deformation mechanism of metal materials is discussed.

Abstract:he effect of complex crystal structures on indexing single crystal SADPs has been investigated on the base of the indexing SADPs of phases in titanium alloys. According to the structure, SADPs can be indexed by one of the following three methods: I .directly indexing SADP by analyzing result according to a Brayals lattice which the structure belongs to; 2.indexing the SADP by using the result gotten according to a suitable Brayals lattice and a necessary mathematical transformation a. indexing the SADP with result calculated with a computer program which was modified according to the diffraction condition of the structure.A pure hkl method in programming for analyzing the corn plex structure is presented to make the programming easier. In the condition of presenting a structure extinction,the SADP can be indexed with the result calculated with present program used foe Brayals lattices and the program modified according to the structure simultaneously. The ideal method for indexingSADPs is a program modified according to the diffraction condition, structure extinction and double d if fraction of a complex structure.

Abstract:The relation ships among the mechan ical properties,the content of carbon elementand WC in cermets with high content of nickel havebeen studied in the paper. The relationships among corn position, dualphase zone,microstructure and mechanical properties have also beendenoted .This work procidea thoretical basis for producing high gualitycormets.

Abstract:A laser heating pedestal growth technique has been used to grow.Single Crystal Fibers (SCF) made from RE: YAG and (Cr,RE): YAG .The technology growing the SCF qualified for good character is discussed. A simpie method of prepering source rods from powders to feed growth of the SCF is described.The absorption and fluorescence spectra of SCF have been measured.

Abstract:用Ｘ射線方法研究了平行于基帶表面的Ｎｉ（２０Ｏ），Ｎｉ（１１１），ＮｉＯ（２００）和ＮｉＯ（１１１）晶面的取向分?jǐn)?shù)Ｗ。結(jié)果表明，隨預(yù)熱處理溫度的提高，雖然Ｗ_（ＮｉＯ（２００））也會(huì)隨之提高，但是區(qū)域重加熱處理對(duì)提高Ｗ_（ＮｉＯ（２００））起著最重要的作用。９００℃預(yù)熱處理之后，在１１００℃進(jìn)行區(qū)域重加熱可使Ｗ_（ＮｉＯ（２００））提高到０．９９以上。

Abstract:he technology of the HIP diffusion bonding of YG 15C cemented carbide to 45# carbon steel has been studied. The effects of bonding temperature. pressure time.interlayer and its thickness. residual thermal stress on bonding strength have been researched. The results show that: In the HIP diffusion bonding of YG 15C to 45# carbon steel, the bonding strength depends on bonding temperature strongly and is controlled by the residual thermal stress d ne to the therm al expansion mismatch after honding. By using N i asinterlayer, the effect of residual thermal stress on bonding can be diminished effectively sothat the bonding strength can be improved apparently.

Abstract:采用純Ｔｉ，Ｂ，Ａｌ粉末通過(guò)真空熱壓反應(yīng)燒結(jié)，成功地制備了原位ＴｉＢ_２增強(qiáng)的Ｔｉ_(kāi)ｘＡｌ_ｙ金屬間化合物基復(fù)合材料。結(jié)果表明，原位生長(zhǎng)的ＴｉＢ_２多為尺寸小于０．１μｍ的塊狀粒子，并在基體中呈現(xiàn)比較明顯的偏聚，粒子與基體的界面結(jié)合是良好的。

Abstract:n this paper, low cycle fstigue property of Ti alloy TA5 was determined in a type of instron 1343 universal fatigue testing machine by using an axle strain controlled method.Strain-life relation of the material under cyclic loading was investigated, low cycle fatigue lifeof a Ti alloy was preliminarily predicted. Results show that the plastic deformation is the basic reason resulting in the fatigue damage of Ti alloy TA15. A logarithmic equation for strain-life curve of the material obtained by a test is linear equation:= 0.0288N -0.1997(wherecorrelation coefficient is 0. 9914, standand difference is 0.2153). Titanium alloy TA5 hascharacteristic of cyclic softening: low cycle fatigue fracture has obvious extrusion streak.

Abstract:報(bào)導(dǎo)了通過(guò)相變熱處理使Ｋ２ＴａＦ７晶體參數(shù)發(fā)生變化，以利于制取高純度超細(xì)鉭粉的實(shí)驗(yàn)依據(jù)和結(jié)果。結(jié)果表明，Ｋ２ＴａＦ７在２００～２５０℃發(fā)生可逆相變；相變后Ｋ２ＴａＦ７晶體的粒徑可由原來(lái)的１３５１．８μｍ減小至７０．８μｍ，極大地提高了比表面積；相變后，雜質(zhì)極大揮發(fā)，提高了Ｋ２ＴａＦ７的純度。