2018 | ANNUAL REPORT 57 Figure 3. a) APT reconstructions of α’ precipitation in Fe- 9Cr to Fe-18Cr alloys in 3Cr increments; b) dislocation loops decorated with Si and Cr segregants; c) Cr (top) and Si (bottom) segregation at grain boundaries; d) Cr and Si segregation to dislocations forming a low-angle tilt boundary. a) c) b) d)