《机械制造基础》课程教学课件（PPT讲稿）工程材料篇（双语）

20钢退火组织P+F

20 钢退火组织 P+F

P+F60钢退火组织

60 钢退火组织 P+F

1. α phaseOnly small concentrations of carbon are solublethemaximum solubility is 0.0218wt%at 727 C.Thelimited solubility is explained by the shape and sizeof theBCC interstitial position, which make itdifficult to accommodate the carbon atomsEven though present in relatively lowconcentrations,carbon significantly influences themechanical properties offerrite

Only small concentrations of carbon are soluble, the maximum solubility is 0.0218wt% at 727 C. The limited solubility is explained by the shape and size of the BCC interstitial position, which make it difficult to accommodate the carbon atoms. Even though present in relatively low concentrations, carbon significantly influences the mechanical properties of ferrite. 1. a phase

Themicrostructureof αferreite(90X)This particular iron-carbon phase is relatively soft

The microstructure of a ferreite(90X) This particular iron-carbon phase is relatively soft

1. α phaseOnly small concentrations of carbon are solublethemaximum solubility is 0.0218wt%at 727 C.Thelimited solubility is explained by the shape and sizeof theBCC interstitial position, which make itdifficult to accommodate the carbon atomsEven though present in relatively lowconcentrations,carbon significantly influences themechanical properties offerrite

Only small concentrations of carbon are soluble, the maximum solubility is 0.0218wt% at 727 C. The limited solubility is explained by the shape and size of the BCC interstitial position, which make it difficult to accommodate the carbon atoms. Even though present in relatively low concentrations, carbon significantly influences the mechanical properties of ferrite. 1. a phase

Themicrostructureof αferreite(90X)This particular iron-carbon phase is relatively soft

The microstructure of a ferreite(90X) This particular iron-carbon phase is relatively soft

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