A first component portion including a first material and that may have a flange. The flange may have one or more ribs located on a surface thereof. A second component portion including a second material that is different from the first material. The second component portion may be cast-in-place over a part of, or substantially all of, the flange and over the ribs. An interconnection is formed between the first and second component portions so that relative movement between the component portions is substantially prevented. Also, thermal expansion and contraction which may occur during use of the first and second component portions is accommodated at the interconnection.