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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Optimization of pulsed TIG cladding process of stellite alloy on carbon steel using RSM
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Optimization of pulsed TIG cladding process of stellite alloy on carbon steel using RSM

机译：RSM优化碳钢上司太立合金脉冲TIG熔覆工艺

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摘要

Stellite 6 is a cobalt-base alloy which is resistant to wear and corrosion and retains these properties at high temperatures. The exceptional wear resistance of Stellite 6 is mainly due to the unique inherent characteristics of the hard carbides dispersed in a Co-Cr alloy matrix. In this study, pulsed tungsten inert gas (TIG) cladding process was carried out to deposit Stellite 6 on plain carbon steel plate. The beneficial effects of this cladding process are low heat input, low distortion, controlled weld bead volume, less hot cracking tendency, less absorption of gases by weld pool and better control of the fusion zone. The dilution effect is a key issue in the quality of cladded layers and, in this regard, the pulsed current tungsten inert gas (PCTIG) was performed to decrease excess heat input and melting of substrate. This paper deals with the investigation of the hardness and dilution ratio by experimental study and mathematical modeling. The experiments were conducted based on four-factor, five-level central composite rotatable design. The second-order regression method was developed to study the correlations. The developed models were checked for their adequacy and significance by ANOVA analysis and confirmation tests were carried out to check the accuracy of predicted values.
机译：Stellite 6是一种钴基合金，具有抗磨损和抗腐蚀性能，并在高温下保持这些特性。 Stellite 6出色的耐磨性主要是由于分散在Co-Cr合金基体中的硬质碳化物具有独特的固有特性。在这项研究中，采用脉冲钨极惰性气体（TIG）熔覆工艺将Stellite 6沉积在普通碳钢板上。这种熔覆工艺的有益效果是：低热量输入，低变形，可控制的焊缝体积，较小的热裂纹倾向，较少的熔池吸收气体以及更好地控制熔合区。稀释效果是覆层质量的关键问题，在这一点上，执行脉冲电流钨极惰性气体（PCTIG）可以减少过多的热量输入和基材熔化。本文通过实验研究和数学建模来研究硬度和稀释比。实验是基于四因子，五级中央复合材料可旋转设计进行的。开发了二阶回归方法来研究相关性。通过ANOVA分析检查开发的模型的充分性和重要性，并进行确认测试以检查预测值的准确性。

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