Process and Properties of Selective Laser Melting Forming ZL205A Alloy

Liu Zhiquan; Yu Huan; Xu Zhifeng; Wang Zhitai; Liang Xiaowen

doi:10.15980/j.tzzz.2019.04.006

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Process and Properties of Selective Laser Melting Forming ZL205A Alloy
Vol. 39, Issue 4, Pages: 370-373(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.04.006

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[1]刘志权,余欢,徐志锋,汪志太,梁小文.选区激光熔化成形ZL205A合金工艺及性能研究[J].特种铸造及有色合金,2019,39(04):370-373.

Liu Zhiquan, Yu Huan, Xu Zhifeng, et al. Process and Properties of Selective Laser Melting Forming ZL205A Alloy. [J]. Special Casting & Nonferrous Alloys 39(4):370-373(2019)
[1]刘志权,余欢,徐志锋,汪志太,梁小文.选区激光熔化成形ZL205A合金工艺及性能研究[J].特种铸造及有色合金,2019,39(04):370-373. DOI： 10.15980/j.tzzz.2019.04.006.

Liu Zhiquan, Yu Huan, Xu Zhifeng, et al. Process and Properties of Selective Laser Melting Forming ZL205A Alloy. [J]. Special Casting & Nonferrous Alloys 39(4):370-373(2019) DOI： 10.15980/j.tzzz.2019.04.006.

摘要

利用选区激光熔化（SLM）技术制备了ZL205A合金

研究了激光能量密度对SLM成形试样显微组织和力学性能的影响。结果表明

ZL205A合金粉末SLM成形试样中微观组织分为3个区域:细晶区、热影响区（HAZ）和粗晶区。在一定的范围内

随着能量密度增大

ZL205A合金粉末SLM成形试样的抗拉强度和屈服强度都先增加后减小。当能量密度为104.20J/mm3时

SLM成形ZL205A合金试样的抗拉强度、屈服强度达到最大

分别为289、230MPa

此时伸长率为4.2%。

Abstract

ZL205 Aalloy was prepared by selective laser melting（SLM）technology.The effects of laser energy density on the microstructure and mechanical properties of SLM formed parts were investigated.The results reveal that the microstructure of powder SLM forming ZL205 Aalloy samples is divided into three areas:fine grain zone

heat affected zone（HAZ）and coarse grain zone.Within a certain range

with the increase of energy density

the tensile strength and yield strength of powder SLM forming ZL205 Aalloy samples are increased firstly and then decreased.With energy density of 104.20 J/mm3

the tensile strength and yield strength of the SLM formed samples reach 289 MPa and 230 MPa

respectively

and the elongation is 4.2%.