1. School of Metallurgy and Environment Central South University Changsha 410083 China
2. Hunan Provincial Key Laboratory of Nonferrous Value‐Added Metallurgy Central South University Changsha 410083 China
3. Powder Metallurgy Research Institute Central South University Changsha 410083 China
4. Yiyang Testing Institute of Product and Commodity Quality Supervision Yiyang 413099 China
5. Hunan Zizhu Technology Co. Ltd. Yiyang 413046 China