Several methods that have been used in joining material pairs with different properties share many disadvantages. To overcome these disadvantages, the current study introduces mechanical locking method (MLM), which is a new and environmentally friendly method. This method can prevent many problems, especially those related to chemical incompatibility in practical applications. The method helps materials with physical and chemical incompatibilities join successfully. The only limitation in the joining process is that one of the materials must melt. When this criterion is met, ceramics can be joint with metals, ferrous-based materials can be joint with non-ferrous metals and other types of materials. This study used two different metal alloys, namely plain carbon steel and brass (CuZn30) for MLM as mold metal and reshaping metal, respectively. MLM process resulted in a successful joining for steel-brass alloys. Joint material pairs were examined using microstructural methods and mechanical properties. The study used the tensile test to evaluate the mechanical properties of joint metals, and used Vickers indentation for hardness measurement. The researcher conducted Scanning Electron Microscope (SEM) investigations for possible interface reactions and re-formed grain structures for both alloys.

用于连接具有不同属性的材料对的几种方法都有许多缺点。为了克服这些缺点，目前的研究引入了机械锁定方法（MLM），这是一种新的环保方法。这种方法可以防止许多问题，尤其是在实际应用中与化学不相容性有关的问题。该方法有助于物理和化学不相容的材料成功连接。连接过程中的唯一限制是其中一种材料必须熔化。当满足此标准时，陶瓷可以与金属接合，黑色基材料可以与有色金属和其他类型的材料接合。本研究分别使用两种不同的金属合金，即普通碳钢和黄铜 (CuZn30) 作为 MLM 的模具金属和整形金属。MLM 工艺成功连接了钢-黄铜合金。使用微观结构方法和机械性能检查接头材料对。该研究使用拉伸试验来评估接头金属的机械性能，并使用维氏压痕进行硬度测量。研究人员对两种合金可能的界面反应和重新形成的晶粒结构进行了扫描电子显微镜 (SEM) 研究。