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Effect of Heat Treatment on Microstructure, Mechanical Properties and Service Performance of Cladded Coating of Austenitic Stainless Steel
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Xiaoke JI1, Yong MAO1, Mao LI1, Haiyu ZHANG2, Feilong JIAN1, Lei ZHUANG1, Weicheng WANG1, Mingjing WANG2, Eryong LIU2
Mining and Metallurgical Engineering | 2025, 45(3) : 212 - 217
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Mining and Metallurgical Engineering | 2025, 45(3): 212-217
• MATERIALS •
Effect of Heat Treatment on Microstructure, Mechanical Properties and Service Performance of Cladded Coating of Austenitic Stainless Steel
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Xiaoke JI1, Yong MAO1, Mao LI1, Haiyu ZHANG2, Feilong JIAN1, Lei ZHUANG1, Weicheng WANG1, Mingjing WANG2, Eryong LIU2
Affiliations
  • 1.Machine Manufacture Plant, PetroChina Changqing Oilfield Company, Xi'an 710200, Shaanxi, China
  • 2.School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, China
Published: 2025-06-01 doi: 10.3969/j.issn.0253-6099.2025.03.036
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As for the current situation of component segregation and significant brittleness tendency in laser cladded coating of austenitic stainless steel, an austenitic cladded coating was prepared by adopting laser cladding technology, and then effects of preheating and annealing treatment on the microstructure, mechanical properties and service performance (corrosion and corrosive wear) of the cladded coating and heat-affected zone (HAZ) were investigated. The results show that the phase composition of the austenitic coating after preheating or annealing process remains predominantly austenitic, exhibiting only grain growth and a preferential orientation shift towards the (111) crystal plane. Both the cladded coating and HAZ have decreased hardness, but significant improvement in the tensile strength and elongation. This is because that the heat treatment not only reduces the intergranular fracture tendency of the cladded coating but also improves the ductile fracture tendency of the HAZ. Furthermore, preheating or annealing process can enhance the corrosion resistance and wear resistance of the austenitic cladded coating, among which annealing process can bring a significant effect. These improvements are attributed to the synergistic effect of reduced component segregation and enhanced plasticity and toughness in both cladded coating and HAZ.

laser cladding  /  austenitic stainless steel  /  cladded coating  /  heat-affected zone (HAZ)  /  heat treatment  /  annealing  /  microstructure  /  mechanical properties  /  service performance  /  wear resistance  /  corrosion resistance
Xiaoke JI, Yong MAO, Mao LI, Haiyu ZHANG, Feilong JIAN, Lei ZHUANG, Weicheng WANG, Mingjing WANG, Eryong LIU. Effect of Heat Treatment on Microstructure, Mechanical Properties and Service Performance of Cladded Coating of Austenitic Stainless Steel[J]. Mining and Metallurgical Engineering, 2025 , 45 (3) : 212 -217 . DOI: 10.3969/j.issn.0253-6099.2025.03.036
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.03.036
  • Receive Date：2025-01-10
  • Online Date：2026-03-19
  • Published：2025-06-01
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  • Received：2025-01-10
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Affiliations
    1.Machine Manufacture Plant, PetroChina Changqing Oilfield Company, Xi'an 710200, Shaanxi, China
    2.School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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