一种低合金高强度钢中（TixV1—x）（CyN1—y）粒子对焊接热循环的响应

研究了低合金高强度钢中(Ti_xV_(1-x))(C_yN_(1-y))粒子对焊接热循环的响应特性其表现是:(1)溶解滞后效应,(2)粗化速率非常缓慢     

我国模具钢的发展

论述了近年我国模具钢的发展，着重介绍一些性能比较优异的冷作模具钢、塑料模具钢和热作模具钢的成分、组织、性能及其应用，并对我国模具钢今后的发展提出了建议。     

硫复合系易切削钢中夹杂物热变形行为的数值模拟

用模拟轧制的方法研究了热加工参数对Ｓ－ＲＥ系易切削钢中夹杂物形态，大小，分布，数量及相对塑性的影响，通过实验结果建立数学模型，利用计算机数据模拟夹杂物的热变形行为，为锻造或轧制过程中的夹杂物预测和控制提供一种新的参考方法。     

轧机用四列圆柱滚子轴承整体外圈磨加工工艺

分析轧机用四列圆柱滚子轴承整体外圈结构特点及传统加工工艺存在问题,将套圈磨削时的单排支承改为双排支承,滚道磨削的单片砂轮改为双片砂轮,并制定了专用工艺流程,使产品加工精度达到P5以上。     

非调质塑料模具钢中析出相的研究

利用电子显微镜技术、化学分析方法观察与分析了非调质塑料模具钢中微合金析出相的显微特征及成分。结果表明，在该钢中析出相为富钛、氮的（Ｔｉ，Ｖ）（Ｃ，Ｎ）化合物，未观察到Ｖ（Ｃ，Ｎ）析出相，说明钛不但能细化奥氏体晶粒，还能促进碳氮化物析出，有利于提高非调质塑料模具钢的强韧性。     

Mn对热作模具钢4Cr3Mo2NiVNb热疲劳性能的影响

采用Ｕｅｄｅｈｏｌｍ法研究热作模具钢４Ｃｒ３Ｍｏ２ＮｉＶＮｂ和添加１．５％Ｍｎ后该钢的热疲劳性能。结果表明，添加１．５％Ｍｎ后，４Ｃｒ３Ｍｏ２ＮｉＶＮｂ钢的热疲劳抗力有所下降。试验结果同时表明，影响热作模具钢低周热疲劳的主要因素是钢的断裂韧性。     

Growth of bismuth telluride thin film on Pt by electrochemical atomic layer epitaxy

An automated thin-layer flow cell electrodeposition system was developed for growing Bi2Te3 thin film by ECALE. The dependence of the Bi and Te deposition potentials on Pt electrode was studied. In the first attempt,this reductive Te underpotential deposition (UPD)/reductive Bi UPD cycle was performed to 100 layers. A better linearity of the stripping charge with the number of cycles has been shown and confirmed a layer-by-layer growth mode, which is consistent with an epitaxial growth. The 4 : 3 stoichiometric ratio of Bi to Te suggests that the incomplete charge transfer in HTeO reduction excludes the possibility of Bi2Te3 formation. X-ray photoelectron spectroscopy (XPS) analysis also reveals that the incomplete charge transfer in HTeO2^ occurs in Te direct deposition. The effective way of depositing Bi2Te3 on Pt consists in oxidative Te UPD and reductive Bi UPD. The thin film deposited by this procedure was characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM) and X-ray photoelectron spectroscopy(XPS). A polycrystalline characteristic was confirmed by XRD. The 2 : 3 stoichiometric ratio was confirmed by XPS. The SEM image indicates that the deposit looks like a series of buttons about 0.3 - 0.4/~m in diameter, which is corresponding with calculated thickness of the epitaxial film. This suggests that the particle growth appears to be linear with the number of cycles, as it is consistent with a layer by layer growth mode.     

Ti（C,N）基金属陶瓷的抗热冲击性能

对Ｔｉ（Ｃ，Ｎ）基金属陶瓷的热冲击性能进行了研究。结果表明，热冲击图（σｒｂ－ｔ图）存在一个突变点，即当ｔ＞４００℃时，σｒｂ急剧下降。扫描电镜观察表明，试样表面存在裂纹，在试样的亚表层下存在孔洞。从而探讨了微孔洞的形成机理。     

添加AlN对Ti（C,N）基金属陶瓷力学性能和显微组织的影响

试验研究结果表明，适量加入ＡｌＮ能够提高Ｔｉ（Ｃ，Ｎ）基金属陶瓷的抗弯强度和硬度。原因是烧结中ＡｌＮ发生了解，在粘结相中形成强化相γ’，从而强化了粘结相。     

数控机床中齿轮传动精度检测装置的研制

数控机床中,小模数精密齿轮的传动精度直接影响到整机的精度和性能指标,因此,对齿轮传动精度的检测就更为重要。对齿轮箱传动精度的检测,指标有传动误差、回差、刚度等项,现我们已在同一系统中实现检测。1.传动误差的测量采用数字测角仪测量传动误差。该齿轮减速器传动比为i,根据传动比数值,在输出轴的一转范围内取K个测点。当输入轴每转一周时,在输出轴上进行一次测量。首先测量顺时针方向的输出轴转角,依次读取各位置的转角,将测得的数据列