To better understand the role of dissolved oxygen(DO) in affecting corrosion behavior of zirconium alloys,the Zr-0.85 Sn-0.16 Nb-0.37 Fe-0.18 Cr(wt.%) alloy was corroded in super-heated steam at 500℃ and 10.3 MPa und...To better understand the role of dissolved oxygen(DO) in affecting corrosion behavior of zirconium alloys,the Zr-0.85 Sn-0.16 Nb-0.37 Fe-0.18 Cr(wt.%) alloy was corroded in super-heated steam at 500℃ and 10.3 MPa under 1×10-6 DO and deaeration conditions.The microstructure of the alloy and oxide films was investigated by SEM,TEM,EDS and EBSD.Results show that the corrosion is aggravated under 1×10-6 DO.Compared with the deaeration condition,the oxide film is looser,and has more micro-cracks and more uneven inner surface under DO condition.For the oxide film forming under deaeration condition,the selected area diffraction(SAED) spots of planes(002)m,■ and(101)t are strong,while those of the(001)m and■ are weak.However,for the oxide film forming under DO condition,the SAED spots of planes(111)m,(200)m and(101)t are strong,while those of the(100)m and(110)m are weak.The higher DO content in super-heated steam accelerates the growth of oxide films,thus decreasing the corrosion resistance of zirconium alloys.展开更多
This paper investigates the organizational culture of one of the largest auto manufacturers in the world Toyota Motor Corporation using various corporate culture and management models. The investigation was conducted ...This paper investigates the organizational culture of one of the largest auto manufacturers in the world Toyota Motor Corporation using various corporate culture and management models. The investigation was conducted in 2009 using qualitative analysis with the help of various secondary sources. The study reveals that the company＇s management style can be characterized as the Family type that implies collectivistic society with male domination, strict rules and laws at work, and long-term orientation. It is also based on several essential principles, such as continuous improvement and learning, respect for people, mutual trust, and teamwork. Two core elements of the Toyota＇s success are technological innovations and qualified human resources.展开更多
基金Projects(51871141,51471102)supported by the National Natural Science Foundation of China
文摘To better understand the role of dissolved oxygen(DO) in affecting corrosion behavior of zirconium alloys,the Zr-0.85 Sn-0.16 Nb-0.37 Fe-0.18 Cr(wt.%) alloy was corroded in super-heated steam at 500℃ and 10.3 MPa under 1×10-6 DO and deaeration conditions.The microstructure of the alloy and oxide films was investigated by SEM,TEM,EDS and EBSD.Results show that the corrosion is aggravated under 1×10-6 DO.Compared with the deaeration condition,the oxide film is looser,and has more micro-cracks and more uneven inner surface under DO condition.For the oxide film forming under deaeration condition,the selected area diffraction(SAED) spots of planes(002)m,■ and(101)t are strong,while those of the(001)m and■ are weak.However,for the oxide film forming under DO condition,the SAED spots of planes(111)m,(200)m and(101)t are strong,while those of the(100)m and(110)m are weak.The higher DO content in super-heated steam accelerates the growth of oxide films,thus decreasing the corrosion resistance of zirconium alloys.
文摘This paper investigates the organizational culture of one of the largest auto manufacturers in the world Toyota Motor Corporation using various corporate culture and management models. The investigation was conducted in 2009 using qualitative analysis with the help of various secondary sources. The study reveals that the company＇s management style can be characterized as the Family type that implies collectivistic society with male domination, strict rules and laws at work, and long-term orientation. It is also based on several essential principles, such as continuous improvement and learning, respect for people, mutual trust, and teamwork. Two core elements of the Toyota＇s success are technological innovations and qualified human resources.
