The United States might be one step closer to its goal of having half of all new vehicles sold in 2030 be zero-emissions electric vehicles. That’s thanks to a pair of MIT undergraduates and their graduate student coach in Germany, who developed a new type of steel not for the cars’ build, but for the die-casting molds that stamp them out in just a few discrete parts. MIT junior Ian Chen and Kyle Markland ’22 placed third in ASM Materials Education Foundation’s 2022 Undergraduate Design Competition. The 3D-printable steel alloy…