The dataset is related to the PhD thesis: Development of Nickel-Titanium Shape Memory Alloys via Laser Power Bed Fusion. The research objective is to establish relationshio between laser powder bed fusion processing parameters, microstructure evolution and NiTi's functions. The research is mainly based on experiments and also employs finite element models and molecular dynamics. Data collection consists of direct experimental and simulated results and some post-treatment files. The data type includes image, txt data, raw diagram ploted by visio and origin, and COMSOL models.