14 Questions 62 Answers 0 Followers
Questions related from Hou Wang
Why austempered can have higher toughness than quenched and tempered in steel , though both have same hardness? (ASM Metals Handbook,Vol. 4 ). Thank you.
07 July 2017 286 0 View
What’s the fatigue propagation mechanism of ductile and brittle steel ,from the view of physical metallurgy？ Thank you very much.
05 May 2017 7,274 2 View
what's physical meaning of fatigue endurance limit? how to calculate or estimate fatigue crack initiation life?
12 December 2016 7,593 0 View
in the plain strain state definition, the Z-direction has stress ,but no strain. is it possible a direction have stress but no strain? likewise, for the plane stress state, there has strain ,but...
11 November 2016 7,371 0 View
what effects temper martensite embrittlement have on fatigue crack nucleation and propagation?
10 October 2016 10,044 26 View
low-alloy steel(0.4C-1.4Cr-1.0Al-0.35Mo) ,carbonitriding at 860℃ about 4 hours,quenching and 190℃ tempering .carbon potential and nitrogen potential are 0.75 and 0.2 respectively. Enclosed file...
10 October 2016 6,953 0 View
What’s the Griffith crack length in high-carbon martensite or plate martensite?In quench martensite ,there is no carbide which need tempering to produce carbide precipitation, then what’s the...
10 October 2016 6,825 2 View
How can calculate fracture load of three-point bending testing through strength and ductility data obtained from tensile testing? and in three-point bending testing ,how to calculate stress...
09 September 2016 6,618 4 View
Will the crack shape and crack tip radius affect KⅠc value and R-Curve? and why ? Thank you for your answers.
09 September 2016 470 53 View
What’s the micro-mechanism of cleavage in uniaxial tension test of intact steel sample?→the microcrack forms when the tensile stress exceed cleavage stress, then propagate immediately.Or:→the...
08 August 2016 3,880 0 View
In some steels,is it possible the cleavage fracture happens after large amount of elongation in the uniaxial tension test of intact sample?
08 August 2016 8,377 9 View
In engineering strength thoerys, different stress-states fracture at same fracture mechanism as they meet the same criterion . will the fracture surface be same in different stress-states...
06 June 2016 3,853 12 View
In bending , there is shear stress besides tensile stress . what's role shear stress play in the fracture during bending? how it influence the fracture?
06 June 2016 1,373 1 View
There are some theses as reference in your articles, Could you share those theses if permitted?
01 January 1970 8,808 2 View
