Microstructure and properties of Stellite12 alloy surfacing welded on multi-stage step-down control valve spool

doi:10.13251/j.issn.0254-6051.2024.10.043

Abstract

Abstract: In order to improve the abrasion resistance and corrosion resistance of multi-stage step-down control valve spool, and shorten the manufacturing cycle of such parts, Stellite12 alloy was prepared on the surface of valve spool by laser cladding and gas tungsten arc welding(GTAW). The microstructure, microhardness, friction and wear properties, uniform corrosion properties of the surfacing welded Stellite12 alloy layer were compared and studied. The results show that the surfacing welded alloy layer prepared by both methods forms a good metallurgical bond with the substrate, and the microstructure is mainly composed of dendrite structures of plane crystal, coarse columnar dendrites, fine and dense equiaxed dendrites. Compared with that of GTAW, the laser clad alloy layer has more dense and fine dendrite structure, and more uniform distribution of dendrite composition. At the same time, the laser clad alloy layer has higher microhardness and better abrasion resistance. In addition, the laser clad alloy layer has lower uniform corrosion rate and more uniform corrosion behavior than the GTAW alloy layer.

Key words: control valve spool, laser cladding, GTAW, Stellite12 alloy, microstructure, properties

CLC Number:

TG455

Chen Lin, Cao Yongmin, Jiang Yongbing, Hao Jiaoshan, Tang Fanshun, Ma Shichuan, Fei Qinnan. Microstructure and properties of Stellite12 alloy surfacing welded on multi-stage step-down control valve spool[J]. Heat Treatment of Metals, 2024, 49(10): 264-271.

References

[1]Jin Zhijiang, Qiu Chang, Jiang Chenghang, et al. Effect of valve core shapes on cavitation flow through a sleeve regulating valve [J]. Journal of Zhejiang University(Medical Sciences), 2020, 21(1): 1-14.
[2]Geng Kaihe, Hu Chenxing, Yang Ce, et al. Numerical investigation on transient aero-thermal characteristics of alabyrinth regulating valve for nuclear power plant [J]. Nuclear Engineering and Design, 2021, 382: 111369.
[3]Jin Haozhe, Zheng Zhijian, Ou Guofu, et al. Failure analysis of a high pressure differential regulating valve in coal liquefaction [J]. Engineering Failure Analysis, 2015, 55: 115-130.
[4]Liu Xiumei, Wu Zihong, Li Beibei, et al. Influence of inlet pressure on cavitation characteristics in regulating valve [J]. Engineering Applications of Computational Fluid Mechanics, 2020, 14(1): 299-310.
[5]Yu Jinsu, Ho Hsinshen, Chen Jiangyi. Effect of Ti content on the microstructure and mechanical properties of laser clad Ti/B4C/dr40-based composite coatings on shaft parts surface [J]. Ceramics International, 2022, 48(10): 13551-13562.
[6]舒林森, 王家胜, 白海清, 等. 磨损轴面激光熔覆过程的数值模拟及试验[J]. 机械工程学报, 2019, 55(9): 217-223.
Shu Linsen, Wang Jiasheng, Bai Haiqing, et al. Numerical and experimental investigation on laser cladding treatment of wear shaft surface [J]. Journal of Mechanical Engineering, 2019, 55(9): 217-223.
[7]陈林, 陈文静, 黄强, 等. 超声振动对EA4T钢激光熔覆质量和性能的影响[J]. 材料工程, 2019, 47(5): 79-85.
Chen Lin, Chen Wenjing, Huang Qiang, et al. Effect of ultrasonic vibration on quality and properties of laser cladding EA4T steel [J]. Journal of Materials Engineering, 2019, 47(5): 79-85.
[8]陈林, 蒋永兵, 尚洪宝, 等. S31000不锈钢表面激光熔覆Stellite12合金层的组织和性能[J]. 金属热处理, 2023, 48(2): 289-294.
Chen Lin, Jiang Yongbing, Shang Hongbao, et al. Microstructure and properties of laser clad Stellite12 alloy layer on S31000 stainless steel [J]. Heat Treatment of Metals, 2023, 48(2): 289-294.
[9]Goodarzi D M, Pekkarinen J, Salminen A. Parameters in laser cladding on substrate melted areas and the substrate melted shape [J]. Journal of Laser Applications, 2015, 27(S2): S29201.
[10]Song Boxue, Yu Tianbiao, Jiang Xingyu, et al. Development mechanism and solidification morphology of molten pool generated by laser cladding [J]. International Journal of Thermal Sciences, 2021, 159: 106579.
[11]Chen Liaoyuan, Zhao Yu, Song Boxue, et al. Modeling and simulation of 3D geometry prediction and dynamic solidification behavior of Fe-based coatings by laser cladding [J]. Optics and Laser Technology, 2021, 139: 107009.
[12]Lee J H, Park S H, Kwon H S, et al. Laser, tungsten inert gas, and metal active gas welding of DP780 steel: Comparison of hardness, tensile properties and fatigue resistance [J]. Materials and Design, 2014, 64(12): 559-565.
[13]Chakraborti P O, Mitra M K. Room temperature low cycle fatigue behaviour of two high strength lamellar duplex ferrite-martensite (DFM) steels [J]. International Journal of Fatigue, 2005, 27(5): 511-518.
[14]徐国建, 黄雪, 杭争翔, 等. 激光和TIG堆焊钴基合金的性能[J]. 焊接学报, 2013, 34(8): 22-26, 114.
Xu Guojian, Huang Xue, Hang Zhengxiang, et al. Characteristics of Co-based clad layer formed by laser and TIG cladding [J]. Transactions of the China Welding Institution, 2013, 34(8): 22-26, 114.
[15]张彦超, 韦朋余, 朱强, 等. 316L不锈钢表面激光熔覆Stellite6合金组织及其耐液态铅铋腐蚀性能[J]. 材料导报, 2021, 35(8): 8121-8126.
Zhang Yanchao, Wei Pengyu, Zhu Qiang, et al. Microstructure and Pb-Bi erosion resistance property of Stellite6 coating by laser cladding on 316L stainless steel surface[J]. Materials Reports, 2021, 35(8): 8121-8126.
[16]Prakash A, Shahi A S. Investigations on high temperature wear and metallurgical characteristics of Stellite6 GTA (gas tungsten arc) weld claddings [J]. Materials Research Express, 2020, 7(2): DOI: 10. 1088/2053-1591/ab6e2b.
[17]Xiang Sisi, Mao Shengcheng, Shen Zhenju, et al. Site preference of metallic elements in M₂₃C₆ carbide in a Ni-based single crystal superalloy [J]. Materials and Design, 2017, 129: 9-14.
[18]占小红. Ni-Cr二元合金焊接熔池枝晶生长模拟[D]. 哈尔滨: 哈尔滨工业大学, 2008.
[19]韩基泰, 武美萍, 崔宸. 激光功率对42CrMo钢激光熔覆层组织和摩擦磨损性能的影响[J]. 金属热处理, 2020, 45(11): 214-217.
Han Jitai, Wu Meiping, Cui Chen. Effect of laser power on microstructure and friction and wear properties of laser clad layer on 42CrMo steel [J]. Heat Treatment of Metals, 2020, 45(11): 214-217.
[20]Wang Xinlin, Shi Shihong, Zheng Qiguang. Wear resistance of laser cladding and plasma spray welding layer on stainless steel surface [J]. Chinese Optics Letters, 2004, 2(3): 151-153.
[21]蔡雨晴, 胡雄风, 屈盛官, 等. 喷丸强化对CF53钢摩擦磨损性能的影响[J]. 机械工程材料, 2021, 45(5): 27-33, 38.
Cai Yuqing, Hu Xiongfeng, Qu Shengguan, et al. Effect of shot peening on friction and wear properties of CF53 steel [J]. Materials for Mechanical Engineering, 2021, 45(5): 27-33, 38.
[22]石世宏, 彭华明, 傅戈雁. 激光熔覆与堆焊层成分稀释度的对比研究[J]. 激光杂志, 1998, 19(4): 25-28.
Shi Shihong, Peng Huaming, Fu Geyan. Contrasted research on the dilution between laser cladding coat and built-up welding coats[J]. Laser Journal, 1998, 19(4): 25-28.
[23]潘邻, 高万振, 陶锡麒, 等. WFLC-11钴基合金激光熔覆层组织及性能评价[J]. 稀有金属材料与工程, 2007, 36(8): 1444-1446.
Pan Lin, Gao Wanzhen, Tao Xiqi, et al. Evaluation on microstructures and properties of laser cladding layer for WFLC-11 Co-based alloy [J]. Rare Metal Materials and Engineering, 2007, 36(8): 1444-1446.
[24]Liu Rong, Yao Jianhua, Zhang Qunli, et al. Effects of molybdenum content on the wear/erosion and corrosion performance of low-carbon Stellite alloys [J]. Materials and Design, 2015, 78: 95-106.