典型化工钛材TA2的低温冲击性能

支有冉; 周玉华

doi:10.15980/j.tzzz.2017.07.026

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典型化工钛材TA2的低温冲击性能
Low Temperature Impact Loading Performance of Typical Chemical Titanium TA2
2017年37卷第7期页码：786-788
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.07.026

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[1]支有冉,周玉华.典型化工钛材TA2的低温冲击性能[J].特种铸造及有色合金,2017,37(07):786-788.

Zhi Youran, Zhou Yuhua. Low Temperature Impact Loading Performance of Typical Chemical Titanium TA2[J]. Special Casting & Nonferrous Alloys, 2017,37(7):786-788.
[1]支有冉,周玉华.典型化工钛材TA2的低温冲击性能[J].特种铸造及有色合金,2017,37(07):786-788. DOI： 10.15980/j.tzzz.2017.07.026.

Zhi Youran, Zhou Yuhua. Low Temperature Impact Loading Performance of Typical Chemical Titanium TA2[J]. Special Casting & Nonferrous Alloys, 2017,37(7):786-788. DOI： 10.15980/j.tzzz.2017.07.026.

摘要

研究了低温范围内（20

190℃）TA2合金的冲击性能。结果发现

TA2合金在试验温度区间内的断裂为韧性断裂。在温度为-50

100℃范围内

TA2的冲击功最低

但随着温度区间往两侧延伸

其冲击功呈现明显的升高趋势。在室温至-190℃区间范围内

TA2合金的断口组织中韧性断裂痕迹明显

有清晰的剪切唇

且断口面的断裂纤维非常粗糙并形成韧窝

为韧性断裂。

Abstract

Low temperature impact loading performance of TA2 alloy at 20

190 ℃ was analyzed.Fracture of TA2 alloy at the experimental temperature range was characterized by ductile crack behavior.The impact energy of the TA2 alloy is the lowest at-50

100℃.With the extension of temperature range

the impact energy values exhibit a notable raised trend.At ambient temperature to-190℃

fracture microstructure of TA2 alloy has apparent ductile structure

where clear shearing lips and dimple are formed in coarse crack fiber.