Project supported by the National Natural Science Foundation of China.
Superplastic alloys have very low flow stress, extraordinarily high elongation insuperplastic state, and elastic recover and static storage effect of strain hardening canhardly be found. So space parts in complex shap...
Project supported by the National Natural Science Foundation of China.
Ⅰ. INTRODUCTIONBecause of the strong structural sensitivity of superplastic deformation, the m-value, which is an important index for the evaluation of superplasticity of materials, is related not only to stress stat...
Project supported by the National Natural Science Foundation of China.
Ⅰ. INTRODUCTIONThe index m value of strain rate sensitivity is an important mechanical factor for evaluating superplasticity. The authors have established the analytically mechanical theories of m value on the basis ...