1 Liaoning Provincial Key Laboratory of Advanced Materials, Shenyang University, Shenyang 110044, Liaoning, China 2 Research Institute of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China
Influence of bias voltage on structure, mechanical and corrosion properties of reactively sputtered nanocrystalline TiN films
1 Liaoning Provincial Key Laboratory of Advanced Materials, Shenyang University, Shenyang 110044, Liaoning, China 2 Research Institute of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China
ժҪ Nanocrystalline TiN films were prepared by DC reactive magnetron sputtering. The influence of substrate biases on structure, mechanical and corrosion properties of the deposited films was studied using X-ray diffraction, field emission scanning electron microscopy, nanoindentation and electrochemical techniques. The deposited films have a columnar structure, and their preferential orientation strongly depends on bias voltage. The preferential orientations change from (200) plane at low bias to (111) plane at moderate bias and then to (220) plane at relatively high bias. Nanohardness H, elastic modulus E, H/E* and H3/E*2 ratios, and corrosion resistance of the deposited films increase first and then decrease with the increase in bias voltage. All the best values appear at bias of -120 V, attributing to the film with a fine, compact and less defective structure. This demonstrates that there is a close relation among microstructure, mechanical and corrosion properties of the TiN films, and the film with the best mechanical property can also provide the most effective corrosion protection.
Abstract��Nanocrystalline TiN films were prepared by DC reactive magnetron sputtering. The influence of substrate biases on structure, mechanical and corrosion properties of the deposited films was studied using X-ray diffraction, field emission scanning electron microscopy, nanoindentation and electrochemical techniques. The deposited films have a columnar structure, and their preferential orientation strongly depends on bias voltage. The preferential orientations change from (200) plane at low bias to (111) plane at moderate bias and then to (220) plane at relatively high bias. Nanohardness H, elastic modulus E, H/E* and H3/E*2 ratios, and corrosion resistance of the deposited films increase first and then decrease with the increase in bias voltage. All the best values appear at bias of -120 V, attributing to the film with a fine, compact and less defective structure. This demonstrates that there is a close relation among microstructure, mechanical and corrosion properties of the TiN films, and the film with the best mechanical property can also provide the most effective corrosion protection.
Chun-lin He,*,Jin-lin Zhang,Guo-feng Ma,Zhao-fu Du,Jian-ming Wang,Dong-liang Zhao. Influence of bias voltage on structure, mechanical and corrosion properties of reactively sputtered nanocrystalline TiN films[J].Journal of Iron and Steel Research International, 2017, 24(12): 1223-1230.
Chun-lin He,*,Jin-lin Zhang,Guo-feng Ma,Zhao-fu Du,Jian-ming Wang,Dong-liang Zhao. Influence of bias voltage on structure, mechanical and corrosion properties of reactively sputtered nanocrystalline TiN films. , 2017, 24(12): 1223-1230.
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