... engine, two-stroke engine Science and technology of materials in automotive engines1 84Gas carburizingGas carburizing is carried out in a gaseous atmosphere containing CO and CH4. The gas dissociates ... vacuum to a carburizing temperature of between900 °C and 105 0 °C. The carburizing gas is then admitted through jets and Science and technology of materials in automotive engines1 708.3 RigidityMonolithic ... stress, and the applied strain makes steel hard (known as workhardening, see Fig. 8.7). Deformation increases the dislocation density in the Science and technology of materials in automotive engines1 642....