Kamsing Chung

8 Questions 13 Answers 0 Followers

Questions related from Kamsing Chung

What cause GGBS to replace cement up to 70% when comparing with PFA?

Is it because of composition difference? I am doing the literature review. It looks like that both GGBS and PFA would react with calcium hydroxide and water to form CSH gel. But then why GGBS...

06 February 2024 1,534 3 View

Which way is more accurate to determine average grain size from EBSD ?

Hi guys, I just received my first EBSD result today. I am now using ATEX to do my average grain size calculation and realizing that ATEX offers 2 ways to calculate average grain size. The first...

16 March 2020 7,121 7 View

Can Niobium tube act as a protective casing for sintering powder alloy sample?

Hi, as a rookie in powder metallurgy field, I've heard that for sintering CP Ti Powder at 1200C in tube furnace, niobium tube or molybdenum crucible would be used as protective casing instead of...

13 January 2020 1,683 12 View

Company that can make pre-alloyed powder?

Hi, I am doing a additive manufacture of high entropy alloy research. Do you guys know any company that make customized pre-alloyed powder? I've checked with several companies and they only sell...

26 November 2019 9,512 8 View

Is it possible to use WDX to measure the nitrogen content of an alloy?

Hi guys, I am doing a research about the welding under nitrogen atmosphere. I made an alloy and welded it using arc under nitrogen atmosphere. In order to quantify how much nitrogen was dissolved...

08 May 2018 5,421 9 View

Non-contact extensometer for miniature tensile test with guage length 3mm

Hi everyone, I am looking for a non conctact extensometer for mini-tensile test sample with guage length of 3mm. I've checked several tesile tester manufacturers. The best non-contact extensometer...

01 January 1970 2,744 0 View

Fracture mirror of spontaneous fracture of tempered glass

Spontaneous fracture of tempered glass is usually caused by expansion of phase transformation of NiS inclusion. I am curious about the size of fracture mirror of this kind of fracture. In...

01 January 1970 6,204 2 View

Identification of creep resistance alloy microstructure in a paper “ Creep-rupture behavior of 3Cr–3W–V bainitic steels”

Recently I came across a paper “Creep-rupture behavior of 3Cr–3W–V bainitic steels”. In this paper the OM image of the microstructure was said to be tempered bainite structure.I believe most of...

01 January 1970 2,977 1 View