orous memory materials are porous materials whose constituent material is made of memory alloys. These materials can simultaneously take advantage of the two types of porous materials and memory alloy. The potential and actual applications of these materials in high-tech industries can be imagined. However, to design a new material requires understanding the factors that influence its properties. However, research into these substances has been at the beginning of the road, and further research is needed. For example, the influence of cavity size on the mechanical properties of porous materials is not yet well understood and conflicting views have been raised about the effect of this agent. The lack of trends in the results and the observation of errors during the fabrication of the samples have led the researchers to study this contribution to simulation. On the other hand, the effect of martensitic transformations on the properties of memory alloys is still being investigated by researchers. Careful scrutiny of transformations requires a method that can track the behavior of these substances on an atomic scale. Therefore, molecular dynamics simulation has been used for this research. Simulations were performed at constant temperature under axial loading in the [001] direction on a single Ni-Al crystal sample. Then, to obtain a residual loop system in the stress-strain diagram, the Ni-Al crystallization system with different irregularities was investigated. The porous material in the single crystal sample containing 18% irregularity was used to investigate the porous material. The inter-atomic potential of eam has been used in this simulation. The results of the simulation of a regular single crystal sample show a stress-strain diagram of a 2-part curve. However, this curve should normally consist of 2 steps. Conventional analyzes to understand the behavior of matter during the simulation did not work to explain the behavior of this curve and led to the use of modeling to simplify and explain the behavior of the material. The behavior of matter is modeled without atomic oscillations, and the expansion of the material is simply considered in terms of tensile and transverse contraction. During the modeling, the main factor of the large curves and the six-stage stress-strain diagram were related to the derivative of the Ni-Al potential energy function. The bottom part of the derivative diagram of the pair potential energy function has low oscillations which is the main reason for the behavior of regular Ni-Al single crystals. In irregular crystalline samples, the area of ??the residual ring increases with increasing irregularity. The results of the porous samples showed that by decreasing the size of the cavities, the material strength did not change at first and the strength increased at very small cavities. Send feedback History Saved Community