坡口尺寸对激光熔覆镍基合金微观组织与力学性能的影响
|
摘要
采用激光熔覆工艺将Ni55镍基粉末涂敷到不同坡口尺寸的FV520B基体上,利用光学显微镜、扫描电子显微镜、微观硬度仪和拉伸试验机研究其微观组织与力学性能。结果表明,随着坡口尺寸的增大,熔覆试样的抗拉强度逐渐减小,但其对硬度分布的影响相对较小。
The effect of groove size on the microstructure and mechanical properties of nickel alloy was studied by optical microscopy, scanning electron microscopy, microhardness tester, and tensile tester. The results show that the tensile strength of the cladding samples decrease with the increase of groove size, however, the hardness distribution do not change obviously.
The effect of groove size on the microstructure and mechanical properties of nickel alloy was studied by optical microscopy, scanning electron microscopy, microhardness tester, and tensile tester. The results show that the tensile strength of the cladding samples decrease with the increase of groove size, however, the hardness distribution do not change obviously.
引文
[1]Shah K,Haq I,Khan A,et al.Parametric study of development of inconel-steel functionally graded materials by laser direct metal deposition[J].Materials&Design,2014,54:531-538.
[2]Dinda G P,Dasgupta A K,Mazumder J.Laser aided direct metal deposition of Inconel 625 superalloy:Microstructural evolution and thermal stability[J].Materials Science and Engineering:A,2009,509(1-2):98-104.
[3]李德英,张坚,赵龙志,等.激光熔覆Fe-Al复合涂层组织及性能研究[J].铸造技术,2012,33(8):930-932.
[4]Tabernero I,Lamikiz A,Martínez S.Evaluation of the mechanical properties of Inconel 718 components built by laser cladding[J].International Journal of Machine Tools and Manufacture,2011,51(6):465-470.
[5]Zeng C,Tian W,Liao W H.Study of laser cladding thermal damage:A quantified microhardness method[J].Surface and Coatings Technology,2013,236:309-314.
[6]Abioye T E,Folkes J,Clare A T.A parametric study of Inconel625 wire laser deposition[J].Journal of Materials Processing Technology,2013,213(12):2145-2151.
[7]张英余,辛志杰.激光加工机器人修复电铲提升卷筒油封接触面工艺研究[J].铸造技术,2012,33(8):975-977.
[2]Dinda G P,Dasgupta A K,Mazumder J.Laser aided direct metal deposition of Inconel 625 superalloy:Microstructural evolution and thermal stability[J].Materials Science and Engineering:A,2009,509(1-2):98-104.
[3]李德英,张坚,赵龙志,等.激光熔覆Fe-Al复合涂层组织及性能研究[J].铸造技术,2012,33(8):930-932.
[4]Tabernero I,Lamikiz A,Martínez S.Evaluation of the mechanical properties of Inconel 718 components built by laser cladding[J].International Journal of Machine Tools and Manufacture,2011,51(6):465-470.
[5]Zeng C,Tian W,Liao W H.Study of laser cladding thermal damage:A quantified microhardness method[J].Surface and Coatings Technology,2013,236:309-314.
[6]Abioye T E,Folkes J,Clare A T.A parametric study of Inconel625 wire laser deposition[J].Journal of Materials Processing Technology,2013,213(12):2145-2151.
[7]张英余,辛志杰.激光加工机器人修复电铲提升卷筒油封接触面工艺研究[J].铸造技术,2012,33(8):975-977.