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The Effect of Sintering Temperature on Wear Resistance of Alloys Produced by Using Hot Isostatic Pressing (HIP) Method
Journal of Superhard Materials ( IF 1.2 ) Pub Date : 2019-06-24 , DOI: 10.3103/s1063457619030031
Tülay Yildiz , Süleyman Aba

The present study investigated the effect of the temperature, at which a new matrix material was produced via hot isostatic pressing (HIP) method by adding certain rate of Co and Ni elements into CuSn (85/15) bronze alloy, and Co and Ni elements wear resistance of the samples produced. One of major advantages of HIP method is that heat and pressure are applied simultaneously during the sintering process. Thus, all or almost all of the pores are eliminated during the manufacturing and a denser material is obtained. During the study, sintering pressure and sintering time were kept constant as 15 min, and also sintering temperature was selected to be 700 and 800°C as the variable parameter. Sintering process was carried out under vacuum starting from the first burn. The produced samples were then prepared metallographically and SEM and EDS analyses were performed for microstructure examinations. Microhardness of the samples was taken to investigate mechanical behaviors of the samples and they were subjected to wear test. Finally, density test was applied to samples and their experimental and theoretical densities were calculated. In conclusion, it was seen that more homogenous samples were obtained as sintering temperature increased. As Co amount and temperature increased in the study, wear resistance increased.

中文翻译:

烧结温度对热等静压(HIP)法生产合金耐磨性的影响

本研究研究了温度的影响,在该温度下,通过向CuSn(85/15)青铜合金中添加一定比例的Co和Ni元素以及Co和Ni元素,通过热等静压(HIP)方法生产新的基体材料所生产样品的耐磨性。HIP方法的主要优点之一是在烧结过程中同时施加热量和压力。因此,在制造过程中消除了所有或几乎所有的孔,并且获得了致密的材料。在研究过程中,烧结压力和烧结时间保持恒定为15分钟,并且将烧结温度选择为700和800°C作为可变参数。从第一次燃烧开始,在真空下进行烧结过程。然后用金相方法制备产生的样品,并进行SEM和EDS分析以进行微观结构检查。采取样品的显微硬度以研究样品的机械性能,并对其进行磨损测试。最后,对样品进行密度测试,并计算其实验和理论密度。总之,可以看出,随着烧结温度的升高,获得了更多的均匀样品。随着研究中钴含量和温度的增加,耐磨性也增加。可以看出,随着烧结温度的升高,获得了更多的均匀样品。随着研究中钴含量和温度的增加,耐磨性也增加。可以看出,随着烧结温度的升高,获得了更多的均匀样品。随着研究中钴含量和温度的增加,耐磨性也增加。
更新日期:2019-06-24
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