Volume 0,Issue 1,1995 Table of Contents
1995(1).
Abstract:
brief introduction is presented for the methods of corn bustion synthesizing TiN including gas-solid,liquid-solid, and solid-solid methods.The effective factors of all these methods are also-discussed in detail. The results show that solid-solid methos is insensitive to nitrogen pressure and diluent,it is one of the simplest technology in the three methods.However,the most typical and common method is gas-solid cormbustion synthesizing method,due to the avilable of nitrogen resoursce.
brief introduction is presented for the methods of corn bustion synthesizing TiN including gas-solid,liquid-solid, and solid-solid methods.The effective factors of all these methods are also-discussed in detail. The results show that solid-solid methos is insensitive to nitrogen pressure and diluent,it is one of the simplest technology in the three methods.However,the most typical and common method is gas-solid cormbustion synthesizing method,due to the avilable of nitrogen resoursce.
1995(1).
Abstract:
采用９２０℃下不同应变速率的压缩实验，较为系统地研究了具有明显的组织定向排列的Ｔｉ６Ａｌ４Ｖ合金非等轴组织的应力应变关系、应力应变速率关系及应变速率敏感性随应变的变化，实验发现在组织取向与应力轴方向之间的夹角不同的情况下，上述各关系具有不同的特征，并从两相变形的特点、变形中的晶粒转动和组织等轴化的角度对实验结果给出了定性的解释。
采用９２０℃下不同应变速率的压缩实验，较为系统地研究了具有明显的组织定向排列的Ｔｉ６Ａｌ４Ｖ合金非等轴组织的应力应变关系、应力应变速率关系及应变速率敏感性随应变的变化，实验发现在组织取向与应力轴方向之间的夹角不同的情况下，上述各关系具有不同的特征，并从两相变形的特点、变形中的晶粒转动和组织等轴化的角度对实验结果给出了定性的解释。
1995(1).
Abstract:
研究了氧含量（０．１０Ｗｔ％～０．３０Ｗｔ％）对Ｔｉ－７５合金组织和性能的影响。试验表明，在所研究的范围内，β晶粒长大的速度随氧浓度增加而减小，强度、硬度、电阻线性增加，塑性及显微组织变化不大，冲击值虽显著降低，但当氧达到０．２０Ｗｔ％时，ａＫ值仍有４６０ｋＪ·ｍ－２，由此可见，氧控制在０．２０ｗｔ％以下，可得到综合性能良好的Ｔｉ－７５合金。
研究了氧含量（０．１０Ｗｔ％～０．３０Ｗｔ％）对Ｔｉ－７５合金组织和性能的影响。试验表明，在所研究的范围内，β晶粒长大的速度随氧浓度增加而减小，强度、硬度、电阻线性增加，塑性及显微组织变化不大，冲击值虽显著降低，但当氧达到０．２０Ｗｔ％时，ａＫ值仍有４６０ｋＪ·ｍ－２，由此可见，氧控制在０．２０ｗｔ％以下，可得到综合性能良好的Ｔｉ－７５合金。
1995(1).
Abstract:
escribes a new process to produce palladium chloride directly with recover palladium by Zinc-magnesium recovery and mixed acid dissolving fro m waste C - Pd catalyst.Higher recovery of palladium and rapid red notion can be obtained cormpared with conventional aluminium reduction process.
escribes a new process to produce palladium chloride directly with recover palladium by Zinc-magnesium recovery and mixed acid dissolving fro m waste C - Pd catalyst.Higher recovery of palladium and rapid red notion can be obtained cormpared with conventional aluminium reduction process.
1995(1):1-6.
Abstract:
Introduce the principle of magneto-optical recording and substrate materials of magneto-optical disk, specifically the properties,manufscture methods and protective film of the rare earth-transition metal(RE-TM)alloy amorphous film.And simply describes the properties and feature of oxide single-crystal,multi-crystal and multiple-story magneto-optical recording film. It is pointed out that the future developing tendency will be multi-layes magneto-optical recording materials.
Introduce the principle of magneto-optical recording and substrate materials of magneto-optical disk, specifically the properties,manufscture methods and protective film of the rare earth-transition metal(RE-TM)alloy amorphous film.And simply describes the properties and feature of oxide single-crystal,multi-crystal and multiple-story magneto-optical recording film. It is pointed out that the future developing tendency will be multi-layes magneto-optical recording materials.
1995(1):15-20.
Abstract:
he development and researching situation of silver, titanium and aluminum based brazing filler for Ti and Ti alloys are reviewed. The advantages and disadvantages of them are discussed. The development tendency of brazing filler metals for Ti and Ti alloys is analyzed.
he development and researching situation of silver, titanium and aluminum based brazing filler for Ti and Ti alloys are reviewed. The advantages and disadvantages of them are discussed. The development tendency of brazing filler metals for Ti and Ti alloys is analyzed.
1995(1):33-37.
Abstract:
研究了Ｔｉ－６．５Ａｌ－３．５Ｍｏ－１．５Ｚｒ－０．３Ｓｉ合金细观结构对裂纹扩展特性的影响。发现当△Ｋ值小于ｄａ／ｄＮ－△Ｋ曲线上转折点处△Ｋ值时，合金出现解理断裂，表明转折点是解理断裂向条纹机制断裂的过渡；大量试验又进而证明，解理断裂与裂尖塑性区大小和裂纹穿过的晶粒或晶域尺寸有关。由此，作者提出了钛合金在裂纹扩展过程中形成解理断裂的一种新的断裂机制。
研究了Ｔｉ－６．５Ａｌ－３．５Ｍｏ－１．５Ｚｒ－０．３Ｓｉ合金细观结构对裂纹扩展特性的影响。发现当△Ｋ值小于ｄａ／ｄＮ－△Ｋ曲线上转折点处△Ｋ值时，合金出现解理断裂，表明转折点是解理断裂向条纹机制断裂的过渡；大量试验又进而证明，解理断裂与裂尖塑性区大小和裂纹穿过的晶粒或晶域尺寸有关。由此，作者提出了钛合金在裂纹扩展过程中形成解理断裂的一种新的断裂机制。
1995(1):38-42.
Abstract:
Dendrite arm spacings of alum inium and Al-Mn, Al-Cu, Al-Li,etc.14 aluminium alloys with minor Rare Elements added have been studied. Present investigation indicates that minor addition of Rare Earth Elements La,Ce or Yobviously refined the dendrite structure of commercial pure aluminium and aluminium alloys.The refining effect of Rare Earth Elements on dendrite arm spacings was directly related to the"quality"and'quantity'of alloying elements in the base alloy,this was reflected by the solute transportation characteristic parameter Po proposed in this paper;The refining effect of Rare Earth Elements on dendrite arm spacings was also related to the cooling rate during solidification. The higher the cooling rate,the weaker the refining effect of Rare Earth Element on dendrite arm spacings.Although some additives were indicated to be very effective in refining grain size of aluminium alloys,their refining effect on dendrite arm spacings were found to be very weak.
Dendrite arm spacings of alum inium and Al-Mn, Al-Cu, Al-Li,etc.14 aluminium alloys with minor Rare Elements added have been studied. Present investigation indicates that minor addition of Rare Earth Elements La,Ce or Yobviously refined the dendrite structure of commercial pure aluminium and aluminium alloys.The refining effect of Rare Earth Elements on dendrite arm spacings was directly related to the"quality"and'quantity'of alloying elements in the base alloy,this was reflected by the solute transportation characteristic parameter Po proposed in this paper;The refining effect of Rare Earth Elements on dendrite arm spacings was also related to the cooling rate during solidification. The higher the cooling rate,the weaker the refining effect of Rare Earth Element on dendrite arm spacings.Although some additives were indicated to be very effective in refining grain size of aluminium alloys,their refining effect on dendrite arm spacings were found to be very weak.
1995(1):43-48.
Abstract:
利用自蔓延高温合成（ＳＨＳ）熔铸技术，将碳化铬的高温熔体铺展在平面样品的钢表面上，从而形成厚度为几毫米的熔覆层。为克服碳化铬与底材的润湿问题，采用与Ｆｅ有良好互溶性的Ｃｒ作为润湿功能层，在此基础上，使Ｃｒ－Ｃ合金层中的碳作阶梯改变，从而获得了梯度熔覆层结构。来用Ｎ２加压（＜２０ＭＰａ）和预热工艺（≤３００℃）等措施，控制反应燃烧温度，改善熔体流动性，增大熔渣分离速度，有利于提高熔覆层表面平滑程度。研究认为，良好的结合强度来源于界面间强烈的冶金作用以及梯度成分分布。
利用自蔓延高温合成（ＳＨＳ）熔铸技术，将碳化铬的高温熔体铺展在平面样品的钢表面上，从而形成厚度为几毫米的熔覆层。为克服碳化铬与底材的润湿问题，采用与Ｆｅ有良好互溶性的Ｃｒ作为润湿功能层，在此基础上，使Ｃｒ－Ｃ合金层中的碳作阶梯改变，从而获得了梯度熔覆层结构。来用Ｎ２加压（＜２０ＭＰａ）和预热工艺（≤３００℃）等措施，控制反应燃烧温度，改善熔体流动性，增大熔渣分离速度，有利于提高熔覆层表面平滑程度。研究认为，良好的结合强度来源于界面间强烈的冶金作用以及梯度成分分布。
1995(1):49-54.
Abstract:
介绍了涂覆Ｙ２Ｏ３的Ｔｉ纤维增强γ－ＴｉＡｌ基复合材料的研究结果，分析了其界面结构和力学性能特征。试验结果表明，用物理气相沉积法（ＰＶＤ）在其表面涂覆Ｙ２Ｏ３层的Ｔｉ纤维增强ＴｉＡｌ基复合材料，不仅使ＴｉＡｌ合金的弯曲强度提高２５％，而且在同一工艺条件下使Ｔｉ纤维与ＴｉＡｌ基体间的界面反应层厚度由原来的３０μｍ减小到１４μｍ，界面有新相Ｔｉ３Ａｌ产生。
介绍了涂覆Ｙ２Ｏ３的Ｔｉ纤维增强γ－ＴｉＡｌ基复合材料的研究结果，分析了其界面结构和力学性能特征。试验结果表明，用物理气相沉积法（ＰＶＤ）在其表面涂覆Ｙ２Ｏ３层的Ｔｉ纤维增强ＴｉＡｌ基复合材料，不仅使ＴｉＡｌ合金的弯曲强度提高２５％，而且在同一工艺条件下使Ｔｉ纤维与ＴｉＡｌ基体间的界面反应层厚度由原来的３０μｍ减小到１４μｍ，界面有新相Ｔｉ３Ａｌ产生。
1995(1):55-60.
Abstract:
测定了含Ｃｅ０．０６ｗｔ％及０．１５ｗｔ％的１４２０合金板材的时效硬化曲线及室温力学性能，分析了Ｃｅ对１４２０合金时效过程的影响。结果表明：Ｃｅ含量在０．１５ｗｔ％范围内的１４２０合金时效的组织与不含Ｃｅ的１４２０合金类似，主要强化相为δ＇及δ＇／β＇复合相。微量Ｃｅ在１４２０合金中可以减缓固溶处理时的再结晶过程及细化再结晶晶粒，并促进δ＇相在时效过程中的弥散析出。添加０．０６Ｗｔ％Ｃｅ时有利于提高合金塑性，而添加０．１５ｗｔ％Ｃｅ时则有利于提高合金强度。采用４６５℃固溶，２％预拉伸变形及１７０℃／６ｈ时
测定了含Ｃｅ０．０６ｗｔ％及０．１５ｗｔ％的１４２０合金板材的时效硬化曲线及室温力学性能，分析了Ｃｅ对１４２０合金时效过程的影响。结果表明：Ｃｅ含量在０．１５ｗｔ％范围内的１４２０合金时效的组织与不含Ｃｅ的１４２０合金类似，主要强化相为δ＇及δ＇／β＇复合相。微量Ｃｅ在１４２０合金中可以减缓固溶处理时的再结晶过程及细化再结晶晶粒，并促进δ＇相在时效过程中的弥散析出。添加０．０６Ｗｔ％Ｃｅ时有利于提高合金塑性，而添加０．１５ｗｔ％Ｃｅ时则有利于提高合金强度。采用４６５℃固溶，２％预拉伸变形及１７０℃／６ｈ时
1995(1):64-68.
Abstract:
以Ｉ３－淀粉配合物为指示剂，用停流ＦＩＡ光度法研究了钼（ＶＩ）和钨（ＶＩ）对Ｈ２Ｏ２－Ｉ氧化还原反应体系的协同催化效应，并定义了协同催化系数Ｄ以表示这种协同作用的大小。将此系数引入到停流ＦＩＡ－动力学体系多组份同时测定的方法中，可有效地补偿吸光度对加和性的偏离，并可降低检出限。用本法测定钼（Ⅵ）和钨（Ⅵ）的线性范围分别为０～１．１μｇ·ｍｌ－１和０～２．０μｇ·ｍｌ－１，而未补偿时则分别为０～０．６μｇ·ｍｌ－１和０～０．８μｇ·ｍｌ－１。测定了钢样及模拟样品中的用和钨含量，结果满意。钼、钨的回收率分别为
以Ｉ３－淀粉配合物为指示剂，用停流ＦＩＡ光度法研究了钼（ＶＩ）和钨（ＶＩ）对Ｈ２Ｏ２－Ｉ氧化还原反应体系的协同催化效应，并定义了协同催化系数Ｄ以表示这种协同作用的大小。将此系数引入到停流ＦＩＡ－动力学体系多组份同时测定的方法中，可有效地补偿吸光度对加和性的偏离，并可降低检出限。用本法测定钼（Ⅵ）和钨（Ⅵ）的线性范围分别为０～１．１μｇ·ｍｌ－１和０～２．０μｇ·ｍｌ－１，而未补偿时则分别为０～０．６μｇ·ｍｌ－１和０～０．８μｇ·ｍｌ－１。测定了钢样及模拟样品中的用和钨含量，结果满意。钼、钨的回收率分别为
1995(1):69-74.
Abstract:
he corrosion perforative equipment made of titanium used for mash shadow of colour TV has been manufactured successfully for the frist time in china.It has been running stable for two years since it was put into operation.The productivity and qualified products have increased by 10% and 6% respectively.It costs about 15% of that of imported one,therefore is a good alternative for the later.The design and manufacture of this production line have reached international level and open a new field for titanium application.
he corrosion perforative equipment made of titanium used for mash shadow of colour TV has been manufactured successfully for the frist time in china.It has been running stable for two years since it was put into operation.The productivity and qualified products have increased by 10% and 6% respectively.It costs about 15% of that of imported one,therefore is a good alternative for the later.The design and manufacture of this production line have reached international level and open a new field for titanium application.
