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Abstract:采用磁懸浮區(qū)域熔煉的方法制備了ＴｉＡｌ合金ＰＳＴ晶體，然后在８００℃下對(duì)其壓縮性能和變形組織分別進(jìn)行了測(cè)試和觀察。結(jié)果表明，在８００℃時(shí)的屈服強(qiáng)度取決于片層界面與壓縮軸的夾角φ在φ＝９０°時(shí)屈服強(qiáng)度最高，而φ＝４５°時(shí)最低。８００℃時(shí)屈服強(qiáng)度較室溫下的有較大程度下降，這與α２相中錐面滑移系｛１１２１｝＜１１２６＞的臨界分切應(yīng)力的降低有關(guān)．

Abstract:分析了Ａｌ－Ｌｉ二元單晶體鋸齒流變的應(yīng)力幅度與被釘扎位錯(cuò)的時(shí)效時(shí)間、應(yīng)變量和溫度的關(guān)系，結(jié)果表明：其應(yīng)力幅度的變化趨勢(shì)符合動(dòng)態(tài)應(yīng)變時(shí)效的理論模型，并且與位錯(cuò)時(shí)效程度的飽和、δ’粒子被切割和鋸齒流變（ＰＬＣ）帶的運(yùn)動(dòng)有關(guān)。

Abstract:探討了Ｎｂ２Ｏ３和ＭｎＯ２摻雜對(duì)３７．５ｐｂ（Ｍｇ，Ｎｂ）Ｏ３－２５ＰｂＺｒＯ３－３７．５ＰｂＴｉＯ３材料的介電、壓電特性的影響。結(jié)果表明，添加１ｍｏｌ％Ｎｂ２Ｏ３能改善陶瓷的燒結(jié)性能，提高材料的體電阻率，從而進(jìn)一步提高了樣品的Ｋｐ及εｒ值；添加１．０ｍｏｌ％ＭｎＯ２能有效提高Ｑｍ，但同時(shí)降低了Ｋｐ及εｒ值。

Abstract:研究了配碳量與Ｎｉ／Ｃｏ比對(duì)ＷＣ－９（Ｎｉ－Ｃｏ）硬質(zhì)合金抗彎強(qiáng)度的影響。實(shí)驗(yàn)結(jié)果表明：ＷＣ－３Ｎｉ－６Ｃｏ的配碳量是６．０４ｗｔ％時(shí)，其抗彎強(qiáng)度與ＷＣ－９Ｃｏ硬質(zhì)合金相當(dāng)；Ｎｉ的分布均勻性對(duì)抗彎強(qiáng)度的影響極其重要，粗粒Ｎｉ粉或（和）較多η相的存在都會(huì)使硬質(zhì)合金形成脆性斷裂，直接影響合金的抗彎強(qiáng)度。

Abstract:he development of zirconium alloys in Light Water Reactors (LWR) is reviewed, and the dominant technological issues and the correlative standard in the application are discussed.

Abstract:he wear behaviors and mechanisms, the factors affecting the transverse rupture strength, the correlation between fracture toughness and the mean free path length of ductile phase, and the various fracture modes of WC-Co cemented carbides used for cutters in coaling mining machine are reviewed. It is suggested that abrasive wear, impact fatigue and thermal fatigue are the main types of failure of WC-Co cutters. It is pointed out that the major approaches to raising the service life of the cutter are the control of the she and the contiguous extent of the WC grain and the lattice type of the ductile phase.

Abstract:Coatings on reinforcements, fabrication methods of the coatings and their effects on the interface and properties of metal matrix composites are reviewed. Various coatings matrix composites are classified as wetting coating, barrier coating and regulating interfacial coating according to the functions of the coatings such as improving wettability, barriering interfacial reaction and regulating interfacial properties, etc. Fabrication methods including electroless plating, chemical vaPOr depositinn,sol-gel technique and other methods are briefly discussed. Effects of single coatings, double coatings and complex coatings on the interface and properties of metal matrix composites are also introduced.

Abstract:研究了熱暴露溫度和氫對(duì)Ｔｉ８１１合金棒材熱鹽應(yīng)力腐蝕（ＨＳＳＣ）性能的性能。結(jié)果表明：Ｔｉ８１１合金ＨＳＳＣ性能對(duì)暴露溫度敏感，在暴露溫度低于４２５℃時(shí)，合金無(wú)ＨＳＳＣ現(xiàn)象，高于４８０℃時(shí)，合金發(fā)生明顯ＨＳＳＣ，性能惡化。合金發(fā)生ＨＳＳＣ的臨界溫度為４５０℃。在ＨＳＳＣ過(guò)程中有氫產(chǎn)生，氫優(yōu)先沿晶界擴(kuò)散，鹽蝕區(qū)氫和氧含量高于基體，使材料脆化。

Abstract:研究了Ｔｉ－１．５Ｎｉ、Ｔｉ－０．５Ｆｅ、Ｔｉ－１．５Ｎｉ－０．５Ｃｕ、Ｔｉ－１．５Ｎｉ－０．５Ｆｅ－０．３Ｃｕ４種合金在９５℃，４０ｇ／Ｌ Ｈ２ＳＯ４＋８０ｇ／Ｌ ＭｎＳＯ４電解二氧化錳溶液中作陽(yáng)極時(shí)的抗鈍化性能。研究表明：以上４種合金都具有比ＴＡ２優(yōu)異的抗鈍化性能，ＴｉＮｉＦｅ的最為優(yōu)異，在電流密度低于８０Ａ／ｍ＾２時(shí)，陽(yáng)極表面不生成氧化膜，析出相Ｔｉ２Ｎｉ對(duì)提高抗鈍化性起關(guān)鍵作用。ＴｉＮｉＦ

Abstract:reasonable and economic technological route for high pure titanium is put forward by the analyses of refining effects for the electrobeam melting of iodide-processing titanium.

Abstract:he properties and characteristics of aluminium matrix composites. e.g. high strength-to-weight ratio, high stiffness-to-weight ratio and superior damping characteristic, are introduced. The application of aluminium matrix composites made by casting in automotive industry are mainly presented.

Abstract:igh-intensity ultrasound entering a molten metal, fibers can combined with the metal shortly, which results in the composites of excellent mechanical property. Under the function of ultrasonic infiltration, a liquid metal can permeate into a particulate perform or can be mixed with the particulates homogeneously. Zinc or aluminium plating on steel wire can be completed by the ultrasonic infiltration coating. Ultrafine metal powder can be prepared successfully by means of an ultrasonic electrolysis process.