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| 1 | Dependence of corrosion resistance on grain boundary characteristics in a high nitrogen CrMn austenitic stainless steel显示文摘Processing schedules for grain boundary engineering involving different types of cold deformation(tension, compression, and rolling) and annealing were designed and carried out for 18Mn18Cr0.6N high nitrogen austenitic stainless steel. The grain boundary characteristic distribution was obtained and characterized by electron backscatter diffraction(EBSD) analysis. The corrosion resistance of the specimens with different grain boundary characteristic distribution was examined by using potentiodynamic polarization test. The corrosion behavior of different types of boundaries after sensitization was also studied.The fraction of low-∑ boundaries decreased with increasing strain, and it was insensitive to the type of cold deformation when the engineering strain was lower than 20%. At the strain of 30%, the largest and smallest fractions of low-∑ boundaries were achieved in cold-tensioned and rolled specimens, respectively. The fraction of low-∑ boundaries increased exponentially with the increase of grain size. The proportion of low-∑ angle grain boundaries increased with decreasing grain size. Increasing the fraction of low-∑ boundaries could improve the pitting corrosion resistance for the steels with the same grain size.After sensitization, the relative corrosion resistances of low-∑ angle grain boundaries, ∑3 boundaries, and ∑9 boundaries were 100%, 95%, and 25%, respectively, while ∑27 boundaries, other low-∑ boundaries and random high-angle grain boundaries had no resistance to corrosion. | Jianjun Qi Boyuan Huang Zhenhua Wang Hui Ding Junliang Xi Wantang Fu | 2017 | Journal of Materials Science & Technology2017,33,12: | 4 |
| 2 | Effect of Preheating Temperature on Surface Cracking of High Nitrogen CrMn Austenitic Stainless Steel显示文摘18Mn18Cr0.5N steel specimens were preheated at the temperatures from 1100 to 1250°C for 5 min,and then cooled to 950°C and compressed.The cracking behaviors were investigated using optical microscopy and scanning electron microscopy.The results showed that the hot workability of 18Mn18Cr0.5N steel gradually decreased with increasing preheating temperature between 1100 and 1200°C,and quickly deteriorated up to 1250°C.Above 1200°C,delta ferrite particles appeared in 18Mn18Cr0.5N steel,promoted cavity coalescence on grain boundary,and accelerated surface crack formation during the hot working process. | Zhenhua Wang Wantang Fu Shuhua Sun Zhiqing Lv Wenhui Zhang | 2010 | Journal of Materials Science & Technology2010,26,9: | 4 |
| 3 | Resistance of a high nitrogen austenitic steel to cavitation erosion显示文摘 | | 2001 | Wear2001,249,: | 1 |
| 4 | Hot deformation behavior of a Nb-containing 316LN stainless steel显示文摘 | Zhang Wenhui Sun Shuhua Zhao Deli Wang Baozhong Wang Zhenhua Fu Wantang | 2011 | Materials and Design2011,,8: | 1 |
| 5 | Mechanical behavior and microstructural change of a high nitrogen CrMn anstenitic stainless steel during hot deformation 显示文摘 | Zhenhua Wang Wantang Fu Shuhua Sun | 2010 | Metallurgical and Materials Transactions A2010,,: | 1 |
| 6 | Effect of warm cross-wedge rolling on microstructure and mechanical property of high carbon steel rods显示文摘 | Yi Xiong Shuhua Sun Yong Li Jun Zhao Zhiqing Lv Deli Zhao Yangzeng Zheng Wantang Fu | 2006 | Materials Science & Engineering A2006,,1: | 1 |
| 7 | Resistance of a high nitrogen austenitic steel to cavitation erosion显示文摘 | Fu Wantang Zheng Yangzeng He Xiaokui | 2001 | Wear2001,249,: | 1 |
| 8 | High performance steel plates with micro-laminated layer structure produced by plastic deformation显示文摘 | JING TIANFU ZHANG JINGWU FU WANTANG GAO MING | 1997 | Journal of Materials Science Letters1997,,6: | 1 |
| 9 | Microstructure Changes during Cavitation Erosion for a Steel with Metastable Austenite显示文摘The characteristics of microstructure changes during cavitation erosion (CE) were investigated by the use of XRD and TEM analyses for steel (ZGOCr13Mn8N) with metastable austenite. The results show that the microstructure of the surface layer of the specimens consists of amartensite, metastable austenite and a few ε-martensite before CE. CE obviously increases dislocation density and straight or planar dislocations on the surface. and inducesγ→ε, ε→ α’ andγ→ α’-martensitic transformation. | Wantang FU (Dept. of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China) | 2000 | Journal of Materials Science & Technology2000,16,5: | 0 |