WEC 121 covers 10 topics. StudyPath paces them into daily study
sessions that finish before your exam date, with practice questions and worked
answers for each one.
Congruent, ordering and martensitic transformations
Isothermal transformation and TTT curves
Lead-tin and copper-zinc equilibrium diagrams
Nucleation and free-energy of phase change
Solid solutions and Hume-Rothery theory
Strengthening processes in metals
Heat treatment methods and welding applications
A sample from this course
One topic, as StudyPath teaches it.
Binary systems and lever rule
Binary phase diagrams illustrate the equilibrium phases of two‑component alloys at various compositions and temperatures. The lever rule is the quantitative tool that lets students calculate the proportion of each phase in a two‑phase region, a skill repeatedly tested in the NUC CCMAS, NBTE and NCCE exams.
What you get for WEC 121
Every topic above, split into sessions and dated against your exam.
Practice questions per session, with answers that explain themselves.
Offline reading — the whole course is a few hundred KB on your phone.
An AI tutor that answers questions using this course's own material.