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ZHANG Wang-feng, ZHU Jin-hua, CAO Chun-xiao. Measurement of Transformation Energy and Increment of Transformation-induced Plasticity[J]. Materials and Mechanical Engineering, 2008, 32(6): 4-5.
Citation: ZHANG Wang-feng, ZHU Jin-hua, CAO Chun-xiao. Measurement of Transformation Energy and Increment of Transformation-induced Plasticity[J]. Materials and Mechanical Engineering, 2008, 32(6): 4-5.
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Measurement of Transformation Energy and Increment of Transformation-induced Plasticity

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  • Received Date: December 17, 2007
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  • Using the tensile curve of metastable materials,a method for measuring transformation energy (Ept) of strain-induced martensite and increment of transformation-induced plasticity was proposed by extrapolating hardening curve of austenite.Ept and the averaging plasticity increment (P value) was tested at -196 ℃ using a CrNi series austenite stainless steel as an example.The results show that per unit volume fraction Ept keeps a constant value of 11.3×106 J·m-3 in the stages of elasto-plasitic instability and stress plateau.The averaging plasticity increment (P value) induced by transformation per unit volume fraction is 0.205%.
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    • References (11)
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