Comparative Study on Microstructure and Performance of 2205 Dual-phase Stainless Steel Rolled Composite Plate with Different Compression Ratios
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摘要: 研究了不同压缩比2205双相不锈钢轧制复合板界面和复层的组织和性能。结果表明,压缩比为4和6的复合板复层均由奥氏体和铁素体组成,奥氏体和铁素体相界呈锯齿状;基层和复层界面处碳钢侧为单一铁素体,不锈钢侧可见一条不连续黑色条带;相比压缩比为4的复合板,压缩比为6的复合板复层铁素体含量更高,奥氏体γ相尺寸更小更长,耐腐蚀性更好,但强度无明显差异;基层和复层界面更平整,结合力更低。
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关键词:
- 2205双相不锈钢轧制复合板 /
- 热轧复合法 /
- 晶间腐蚀 /
- 点蚀 /
- 应力腐蚀
Abstract: The microstructures and properties of the interface and lamination of 2205 dual-phase stainless steel rolled composite plate with different compression ratios are compared by metallographic microscope observation, chemical immersion and electrochemical corrosion test, Vickers hardness and shear strength test. It is found the composite plates with the compression ratios of 4 and 6 are composed of austenite and ferrite, and that the boundary between the austenite and ferrite is jagged. The carbon steel side at the interface between the base and cover metals is single ferrite, and a discontinuous black strip can be seen on the stainless steel side. Compared with the composite plate with the compression ratio of 4, the cover metal of the composite plate with the compression ratio of 6 has higher ferrite content, smaller and longer austenite γ phase, and better corrosion resistance. But there is no significant difference in strength. The interface between the base and cover metals is flatter and has lower binding force. -
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[1] RAMKUMAR K D, SINGH A, RAGHUVANSHI S, et al. Metallurgical and mechanical characterization of dissimilar welds of austenitic stainless steel and sup-erduplex stainless steel-A comparative study[J]. Journal of Manufacturing Processes, 2015, 19:212-232.
[2] ZHANG B, XUE F, LI S L, et al. Non-uniform phase separation in ferrite of a duplex stainless steel[J]. Acta Materialia, 2017, 140:388-397.
[3] CUI Y Y, JIA Y F, XUAN F Z. Micro-deformation evolutions of the constituent phases in duplex stainless steel during cyclic nanoindentation[J]. Scientific Reports, 2018, 8:6199.
[4] LIU G, LI S L, ZHANG H L, et al. Characterization of impact deformation behavior of a thermally aged duplex stainless steel by EBSD[J]. Acta Metallurgica Sinica (English Letters), 2018, 31(8):798-806.
[5] MA L, HU S S, SHEN J Q, et al. Effects of Cr content on the microstructure and properties of 26Cr-3.5Mo-2Ni and 29Cr-3.5Mo-2Ni super ferritic stainless steels[J]. Journal of Materials Science & Technology, 2016, 32(6):552-560.
[6] WANG S, LIU B X, CHEN C X, et al. Microstructure, mechanical properties and interface bonding mechanism of hot-rolled stainless steel clad plates at different rolling reduction ratios[J]. Journal of Alloys and Compounds, 2018, 766:517-526.
[7] LIU B X, YIN F X, DAI X L, et al. The tensile behaviors and fracture characteristics of stainless steel clad plates with different interfacial status[J]. Materials Science and Engineering:A, 2017, 679:172-182.
[8] 金贺荣, 韩民峰, 段昌新. 压下率对316L/EH40复合板界面微观形貌的影响[J]. 钢铁, 2019, 54(12):62-69. [9] 段昌新. 真空热轧316L/EH40复合板界面微观组织及力学性能研究[D]. 秦皇岛:燕山大学, 2019. [10] RAO N V, SARMA D S, NAGARJUNA S, et al. Influence of hot rolling and heat treatment on structure and properties of HSLA steel explosively clad with austenitic stainless steel[J]. Materials Science and Technology, 2009, 25(11):1387-1396.
[11] 祖国胤, 于九明, 温景林. 钎焊-热轧复合工艺制备不锈钢/碳钢复合板[J]. 焊接学报, 2007, 28(5):25-28. [12] 金贺荣, 张磊. 多道次热轧不锈钢复合板热力耦合模拟及实验研究[J]. 塑性工程学报, 2018, 25(5):158-165. [13] 肖丰强, 王东坡, 胡文彬, 等. 终轧温度对2205/Q235B双相不锈钢复合板组织和性能的影响[J]. 材料导报, 2020, 34(16):16119-16124. [14] LIU B X, WANG S, FANG W, et al. Microstructure and mechanical properties of hot rolled stainless steel clad plate by heat treatment[J]. Materials Chemistry and Physics, 2018, 216:460-467.
[15] 张心金, 祝志超, 刘会云. 热轧不锈钢复合板界面组织与拉伸断裂的研究[J]. 武汉科技大学学报, 2017, 40(6):408-414. [16] 代响林, 刘宝玺, 马久乐, 等. 真空热轧法制备不锈钢复合板组织和力学性能[J]. 钢铁, 2017, 52(2):65-70. [17] 张欣耀, 查小琴, 任永峰, 等. DSS2205轧制与爆炸复合板复层组织与性能分析[J]. 物理测试, 2021, 39(1):1-5. [18] 吕泽华, AGAMURADOV D, 张志雄, 等. 热轧双覆层不锈钢/碳钢复合板组织与性能研究[J]. 塑性工程学报, 2020, 27(7):168-175. [19] 敖永明, 李成良, 黄远坚, 等. 锰质量分数和压缩比对中碳钢相变组织的影响[J]. 连铸, 2017, 42(3):78-82. [20] 任永峰, 查小琴, 张凌峰. 2205双相不锈钢热轧复合板复层组织及性能研究[J]. 塑性工程学报, 2020, 27(3):122-129. [21] KURT B, ÇALIK A. Interface structure of diffusion bonded duplex stainless steel and medium carbon steel couple[J]. Materials Characterization, 2009, 60(9):1035-1040.
[22] KUROTSU T, SEGAWA A. Evaluation of deformation behavior of oxide scale in hot rolling process by vacuum hot rolling mill[J]. Procedia Engineering, 2014, 81:126-131.
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