73. The presence of hard alloy carbides in high chromium white iron alloys results in excellent abrasion resistance, making them suitable for materials handling in the mining and materials processing industries. The accompanying data on x

retained austentite content (%) and y
abrasive wear loss

(mm3

) in pin wear tests with garnet as the abrasive was read from a plot in the article “Microstructure-Property Relationships in High Chromium White Iron Alloys” (Intl. Materials Reviews, 1996: 59–82).

(xˆ  x)2



Sxx 1

n 

s

ˆ

1 Age: 9 10 11 12 13 14 33 39 52 65 69

%DAA: 1.13 1.10 1.11 1.10 1.24 1.31 2.25 2.54 2.93 3.40 4.55 x 4 5 8 11 12 16 17 20 22 28 30 31 39 y 5 7 10 10 14 15 13 25 20 24 31 28 39 x 4.6 17.0 17.4 18.0 18.5 22.4 26.5 30.0 34.0 y .66 .92 1.45 1.03 .70 .73 1.20 .80 .91 x 38.8 48.2 63.5 65.8 73.9 77.2 79.8 84.0 y 1.19 1.15 1.12 1.37 1.45 1.50 1.36 1.29