... (1255 °F), and held 48 h.
Structure is spheroidized carbide particles and lamellar pearlite in a ferrite matrix. Picral. 1000×
Fig. 203 Hot-rolled alloy steel bar (1.2C-0.5Cr-0.9Mo-
0.2V), ... 101, 102, 103, and 1 04 in the section "Atlas of Microstructures for
Carbon and Alloy Steels" in this article.
Carbon and Alloy Steels: Metallographic Techniques and Mic...
... low-carbon steel. Specimens were rough
polished on 1- m diamond and finish polished for 4 h on 0. 1- m Al
2
O
3
suspended in a 2:1 mixture of
propylene glycol and water. Fig. 57: using a 40 -g ...
Fig. 47
Fig. 48
Comparison of polishing methods for showing phases in Al-13Si alloy. Fig. 47 : specimen was polished on
1 0- to 2 0- m Al
2
O
3
on billiard cloth....
... Structure consists of
tempered martensite-bainite. 4% nital. 500×. (L.L. Bright)
Fig. 44 Low-alloy cast steel (0.28C-0.55Mn-1.3Si-1.00Ni-1.5Cr-
0.4OMo), normalized at 925 °C (1700 °F),
hardened ... Application
AI-7 Macroetch 50 mL HCl and 50 mL H
2
O Dip at 7 0-8 0 °C (16 0-
175 °F)
Nital General-purpose etch for iron and steels 2-1 0 mL HNO
3
and 9 0-9 8 mL ethanol o...