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首页> 外文期刊>American journal of applied sciences >The Sintering Temperature Effect on the Shrinkage Behavior of Cobalt Chromium Alloy
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The Sintering Temperature Effect on the Shrinkage Behavior of Cobalt Chromium Alloy

机译：烧结温度对钴铬合金收缩行为的影响

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Problem Statement: Co-Cr based alloys which is well known for its high Young's modulus, fatigue strength, wear resistance and corrosion resistance is an important metallic bio-material. However, till date there are only two type of Co-Cr alloy which are the castable and wrought cobalt alloy. Powder Metallurgy route for cobalt is expected to give better result of Co-Cr alloy. The purpose of this research was mainly to study the sintering temperature effect to the shrinkage behavior of Cobalt Chromium (Co-Cr) alloy of the powder metallurgy route. Approach: Co-Cr was produced following P/M route under sintering temperature of 1000, 1100, 1200, 1300 and 1400℃. The sintering time was fixed at 60 min. Several tests has been conducted to determine this effect such as the rate of shrinkage measurement, the bulk density and porosity percentage measurement, compression and hardness tests and micro structural study. Result: From the study, it was found that the sintering temperature has caused the shrinkage of Co-Cr. The increasing of the sintering temperature has caused to the increasing of shrinkage of Co-Cr. This has resulted to the reduction of the pore volume and hence increased it density. In conjunction to that, the strength and the hardness of Co-Cr was increased. Conclusion: Therefore, it is hope that it will bring new view of powder metallurgy Co-Cr alloy as bio-material.
机译：问题陈述：以高杨氏模量，疲劳强度，耐磨性和耐腐蚀性而闻名的钴铬基合金是一种重要的金属生物材料。然而，迄今为止，仅有两种类型的钴铬合金是可铸造和锻造钴合金。钴的粉末冶金路线有望获得更好的钴铬合金效果。这项研究的目的主要是研究烧结温度对粉末冶金路线的钴铬合金的收缩行为的影响。方法：在P，M路径下，在1000、1100、1200、1300和1400℃的烧结温度下生产Co-Cr。烧结时间固定为60分钟。已经进行了一些测试来确定这种影响，例如收缩率的测量，堆积密度和孔隙率的测量，压缩和硬度测试以及微观结构研究。结果：从研究中发现，烧结温度引起了Co-Cr的收缩。烧结温度的升高导致Co-Cr的收缩率增加。这导致孔体积的减少并因此增加了其密度。与此相伴，提高了Co-Cr的强度和硬度。结论：因此，有望为粉末冶金Co-Cr合金作为生物材料带来新的观点。

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