Metallurgy; an introduction to the study of physical metallurgy . Fig. Fig. 56. [?o face p. Hi. TYPICAL ALLOY SYSTEMS 145 cation, although such coalescence appears to occur in thepresence of certain third elements. How far this supposeddecomposition of the /3 body affects the mechanical or otherphysical properties of the alloys is also not yet ascertained,although it has been suggested that it plays a part in the spon-taneous cracking of certain brass articles. Further evidencemust, however, be awaited before much weight can be attachedto this whole matter. Li the region of the diagram en
Metallurgy; an introduction to the study of physical metallurgy . Fig. Fig. 56. [?o face p. Hi. TYPICAL ALLOY SYSTEMS 145 cation, although such coalescence appears to occur in thepresence of certain third elements. How far this supposeddecomposition of the /3 body affects the mechanical or otherphysical properties of the alloys is also not yet ascertained,although it has been suggested that it plays a part in the spon-taneous cracking of certain brass articles. Further evidencemust, however, be awaited before much weight can be attachedto this whole matter. Li the region of the diagram enclosed by the lines BC, Cc^,CjB, the alloys consist entirely of the 13 phase, and it is interest-ing to note that it is this phase which, while comparatively hardand brittle in the cold, lends itself to hot roUing and forging,while the a phase, which is soft and ductile at the ordinarytemperature, is generally regarded aa being too weak andfriable when hot to withstand hot working.* At the ordinarytemperatures the alloys lying between the points d^ and Ci appearto consis
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmetals, bookyear1922
